Each of those modes existed long before this latest expansion; raiding is a basic concept in MMOs, and Mythic+ was added in World of Warcraft’s last expansion. The problems with Battle for Azeroth’s endgame come from the systems it adds, which most often artificially gate progress where most of the fun can be found. If raids and Mythic+ are the carrot, we’re about to talk about the stick.
This is a once size fits all pet farm that can generally leave you with a small sum of gold if your server is low on this specific pet. (You can always check on the undermine journal).  It takes place in the Ihgaluk crag and is generally performed by sweeping the oozes in the small muddy pools surrounding the area.  An easy spot to hit, that really isn't farmed all to often.  I was able to get one in the video after a small 24 minutes.
Rogues can make fast money from pickpocketing mobs, opening lockboxes and selling items that drop from those on the AH. If you don't have a rogue make one and get him to at least level 16. Rogues can also make some money by picking locks for people and getting tips. Not a great revenue source, but a decent one to supplement multiple strategies for making money. Generally, the usual lockpicking tip is between 50s to 1 gold, the most common being 50 silver. Sometimes, you can get lucky and have someone tip up to 5 gold for lockpicking several (or even just one) boxes. It's always beneficial for a rogue spending time doing repairing, training, etc. in a city to put up a lockpicking advertisement on the trade channel. Just make sure you let the buyers decide the price and that your lockpicking level is high enough.
Flipping is the least time consuming way to make gold in WoW. It simply involves trading on the auction house. You buy low and sell high. There are a lot of different markets you can try your hand in flipping both Legion and old world. Flipping works best when there are natural variations in either demand or supply for an item which will cause the price to vary over time.

While enchanting is generally considered expensive to level, you can make a profit with it as soon as you start disenchanting for profit. It is not unlikely that almost any green item in this case will have a buyout price for a lot less than the materials it disenchants into. Likewise, it is lucrative to check the auction house for green items with unpopular suffixes, such as "of the Gorilla," with low starting bids.
I tell you my experience. I'm leveling a priest that it's 60 now and since I have also done some instances (and I have full heirloom set with 20% experience gain bonuses) and been very ahead of the guide, I skipped some zones since they were grey quest for me, well it was a real mess. Missing quests because I didn't to the previous to enable the following. Going in a zone then realizing that I couldn't do that quest because I didn't do the starting quest chain, very unconmfortable. In short what I suggest you it's not to skip areas, or make really sure that you do all the quests required (at least) and check carefully the previous zone you'll going to skip to make sure that you won't have problems with struggling finding where to start the quest chain to sync with the guide section.

Incursions are a new world content activity that are unlocked when one character has unlocked World Quests. This feature is unlocked account-wide meaning that all characters on that account can access Incursions even without being Level 120. This provides for a lucrative experience acquisition method that is available in a similar pattern to what Legion Invasions offered with nearly an entire level earned by completing an Incursion series which involves four World Quests and one mini-scenario at the end. These also grant item level 370 weapons and Azerite armor, so they should be done any time they are up. Incursions follow a similar schedule to Invasions and are available for 20 hours once they are initiated.

The neutral auction house can become one of your best friends. Other players are constantly checking both factions' auction houses to find an appropriate price for the good they demand. Often times, goods are cheaper on the alliance because they have more people, thus, the supply increases as demand decreases and price goes down. If you are horde, feel free to transfer gold to your alliance toon through the neutral auction house in order to buy them item and bring it back to the horde side where it is more expensive. The 15%, as of patch 3.3.3 (down from 30%) is well worth the extra 50% or more you can easily make on one item alone. Blizzard decreased the neutral cut for a reason to 15%, that reason is to get trade facilitated between the horde and alliance. Make sure you take advantage of this! Tips when trading between factions:

Note that the previous method to obtain the tome has been hotfixed and no longer works. Initially, discord user Darethius#8990 has obtained the tome one week ago accidentally by hearthing during the Zul encounter in Uldir on Heroic difficulty. This was unintended and was quickly fixed by the devs. As stated above, to get the tome you now have to kill Zul on Normal, Heroic or Mythic difficulty!

 Void elf - "Many have sought to harness the corruptive magic of the Void. Most who tried have fallen into madness. Determined to use this power for the good of Azeroth, Alleria Windrunner is the first mortal to succeed at defying the shadow's whispers. Coming to the aid of a group of her kin who nearly gave in to the darkness, Alleria has vowed to train these Void Elves to control the shadows within them and pledge their newfound powers to the Alliance."

You should try and quest efficiently - pulling several mobs if you can handle it, using your burst cooldowns while questing to kill everything faster. Many people would think that a 10-minute cooldown like Bloodlust is useless in open world, but you can do a "kill-15-mobs" quest in like 30 seconds if you pull a lot and use it. A free quest every 10 minutes is not that bad.

I just decided that I would simply finish leveling my hunter the hard way, but when i can get heirlooms ill make a warrior and follow your guide to 80. I definitly want an 80 warrior for cataclysm... seeing as worgen warrior is going to be a crazy tank! By the way, is using heirlooms with your guides ok? And what class should I be for a tank? I will obviously be switching to worgen anyway but i would prefer best tanking until then. Thanks Jame!
World of Warcraft is setting itself up for a dangerous pattern of game design where mistakes are completely erased and not iterated upon and players who play the game for other amounts of content other than raiding in mythic plus will be left with nothing to do in the future due to the lack of iteration upon pvp systems and crafting systems within the game. World of Warcraft is on track for a downward spiral, and only new direction and acceptance of mistakes will help this dev team move forward in a positive direction.… Expand
Each pet has 3 abilities it can use during a battle, but a total of 6 to choose from. They will also have a total of 3 active spell slots that show which abilities can be used during a Pet Battle. The first spell slot will already be unlocked, but the second and third will only become available once the companion has reached a certain level. Other spells will also unlock after reaching higher levels.
Battle for Azeroth, despite the endless grind, has been an exciting expansion this far. However, raids and additional content are what makes the game great. Blizzard has made the entry level into the new expansion welcoming for new players and some die-hard critics have shared their concerns with the current direction Blizzard are going with making the gaming “easier.”
Oct 24 Giving Back - In-Game Help for New Players List was last pruned of inactivity on 4/12/2016. You can check this post to see how I determined inactivity: http://us.battle.net/wow/en/forum/topic/981608215?page=42#831 It's never too late to volunteer! I'm always adding people to the list. Also, despite the name, these mentors are also available to returning players who need help, too! Disclaimer: This is NOT a place to populate your friend list in-game. These are mentors here to help. These players are also NOT chosen by Blizzard (though a few of them may be MVPs that have volunteered!). They are simply other posters who are willing to be helpful! -- Originally started by Hektikk of the Trollbane server, on the old forums. Now created here and maintained by me. Help on the forums is good, but sometimes as a new player, you need help in-game with your various questions. And that's where this thread comes in! It's a list of volunteers--players just like you or me--who are willing to become mentors to new players. They'll get you started if you're brand-new, and answer questions as you are learning your way through the game. You may even make new friends! Before you choose a potential mentor, read on for some helpful hints about how to make your experience a successful one! -- NEW PLAYERS: IMPORTANT: DO NOT post in this thread asking people to come to your server to help, or to ask a question about the game. The point of this thread is to provide you with a resource so that YOU can seek out the help you need in-game, not for people to search for you. For questions, just make a new thread and ask the regulars here on the forums. - To use this thread, check if someone from your faction/server is on the list already, or decide where you'd like to play on based on available volunteers. Next, add the volunteer to your friends list. Then, you can see when they get online and whisper them! You can also mail them via the mailbox, or check the Google lists (links in post #2) for any of that player's alts. If a mentor has a BattleTag listed, you can use that to talk to them no matter what server/faction you're on. However, they will have to accept your friend request first. - Keep in mind that players on Oceanic servers can ONLY see players from other Oceanic servers in the game world. If you wish to be on an Oceanic server, it is highly recommended you seek help from mentors also on Oceanic servers. - NOTE: Due to restrictions, Starter Accounts cannot mail anyone, whisper other players, or use BattleTag/RealID messaging. If another player whispers you first, or you both add one another to your friend list, you may whisper them. - Be sure to identify yourself when you contact someone. Mention this thread. Some players might ignore you otherwise. Also keep in mind that a player might be busy, so they might miss your whisper the first time around. Don't spam or harass them. - Don't beg or act entitled to bags, gold, dungeon runs, guild invites, etc. No one on this list is obligated to give you items or do you favors. - If someone is rude or very unhelpful, please ignore them, then consider messaging me in-game or on Twitter (@LadyLatias) to let me know (please don't call them out on the forums). Conversely, if you had a great experience with someone, let me know that too! - If any of the characters on this list seem to not exist/be active anymore, please make a post here saying so and I will remove them. -- VOLUNTEERS: - Be patient and treat the newbies well. No one wants to roll on your server, have you talk to them for a few days, and then have you get bored with them and ignore them. If you don't have patience for teaching, don't volunteer. - You are welcome to submit your BattleTag, but only do so if you're willing to have strangers talk to you at any time. Also note that people who friend request you can NO LONGER include a note to identify themselves. Please remove and/or report BT friends if they are being rude or harassing you. - If you want to be a volunteer, please post a maximum of five characters per faction per server. Alts are no longer listed here, but they will be added to the Google lists. - Please do not submit characters that are under level 10, bank alts, or otherwise not played frequently. - If you no longer want to be a mentor, or are going to quit the game, please post to have your name removed from the list. If you plan on doing a change to a character on this list (server transfers, name/faction change, etc.), please let me know that too! -- If you want to be a volunteer, just post here with your character(s), faction, and server, and I'll add your name to the list. I will also list Battletags if you wish (not required). Welcome to WoW! Happy questing!Cerylia1042 Oct 24
The most rare and expensive poly morph tome drop and for a reason.  The bears that drop it are VASTLY spread out across the zone and getting one can mean hard farminh for a while.  They also take a while to respawn so watch out.  Getting one to drop can mean a staggering 48,000g, and on top of that compared to other pet farms and such, they have a much higher drop chance.  Simply head over to dragonbligh ona mage character (class trial is perfect) and start the killing.  Cross you fingers as there is an 0.4% chance to get one on each kill.  Thats actually pretty high considering..
Alchemy is a great profession for gold-making as the main outputs are consumed on use, this means that there will always be demand for new potions and flasks. The old world recipes are also very profitable. Sadly I don’t have Legion alchemy so I can’t personally help you. The best guide I was able to find on the internet is this video guide by Ninja Kuma.
For example, the Azure Whelpling belongs to the Dragonkin family. However, it has Beast, Magic, and Elemental abilities in addition to a Dragonkin attack. Different attacks are strong and weak against different family types. Having a diverse spell selection might increase your chances of being prepared with a strong attack against an opposing team.

Island expeditions require groups of three players to venture to islands with randomly spawned enemies and piles of AP. The island expedition ends once they collect a certain amount of AP, and they are granted about 300 AP as a reward — unfortunately, players don’t get any of the between 6,000 and 12,000 AP they collect during the expedition. These missions can take anywhere from three to 20 minutes, and never once offer any real challenge or depth.

The amount of bots in this game is absurd. Constant flow of cheap herbs and other crafting reagents coming into the game and nothing is being done about it. I've noticed there is two big players working the auction house with their massive bot accumulations. These 2 big players appear in over 30% of the auction houses across all NA Servers. I've not checked in EU or other regions but I'm assuming they are also plagued. I've included some screenshots just so you can see how bad it is.

A new quest will pop up once your first pet reaches level 3. It will send you to either Audrey Burnhep in Stormwind or Varzok in Orgrimmar. These trainers will offer a quest chain to battle specific Pet Tamer NPCs on each continent. Defeating each of these NPCs will reward a nice chunk of experience for your pets, as well a Sack of Pet Supplies (which has the chance to drop the Porcupette companion, among the always-useful pet bandages).
Level with a pet if you can because it will help keep you safe. If your pet is tanking all of the damage from the enemies you’re fighting, you won’t have to. The other reason is that pets are easier and cheaper to heal than you are. If you don’t have a pet, make sure you know how to use your defensive abilities. You can’t level quickly if you are dying all the time.
Isle of Quel'Danas: Special mention. At lvl 70 you can start doing the dailies here. Despite not being able to fly, the quest density is VERY high. I recommend hitting this every reset if you spend more than 24 hours REAL time(not /played)in the 70-80 level range. In fact, if you're doing a monk and only logging in once each day anyway, IQD WILL be your best exp/h for this level range.
When an allied race has been unlocked for a player, new characters from that race will start at level 20. If a player levels an Allied race from 20 to level 110 without using character boosts, they will be rewarded with a unique "Heritage Armor" for transmogrification that reflects the unique lore behind the race but is limited for use to that race. Doing the quests to unlock the allied races will also unlock the races' unique mounts for use by the characters of their faction.[5] The void elves, Lightforged draenei, Highmountain tauren, and Nightborne, as races tied to the storyline for Legion, were made available with the preorder on January 30, 2018.[7] The Dark Iron dwarves and the Mag'har orcs are made available upon completing the "War Campaign" in Kul Tiras and Zandalar and reaching Exalted with one faction's War Campaign reputation; the Kul Tiran humans and Zandalari will be made available later in the expansion. Game director Ion Hazzikostas also indicated that additional Allied Races may be available in the future.[8]

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When assigning a selling price, do not aim for too low a price that would give you too little profit, but certainly do not assign too high a price. Too much greed is never a good thing, and the AH is filled with items that do not sell due to excessive inflation. A very common tactic in the AH is to sell for lower than what another player is offering, and many players make a lot of money that way. Similarly, losing sales thanks to being undercut is never fun. Aim for as low a price you can that will still make you a good profit. If you can keep producing the same item over and over, sell cheaply yet make a good amount of the item, you will reliably make a lot of money by volume. Moving inventory is the best kind of inventory.
With a bit of upfront time investment, and luck, you can kickstart your transmog business. What I recommend is to spend 6-8 hours, or however many you can stomach, farming ZF, WC, and RFK over the course of a week. This should net you a few hundred items of value to list on the AH. Over the coming weeks and months, spend at least one hour per week, revisiting one of these dungeons, or branch out into other classic dungeons.