Même logique que du côté de la Horde, Drustvar est la zone la plus difficile, et la Vallée Chantorage la plus facile lorsque les choses se corsent. Nous vous recommandons également d'attendre le niveau 120 avant de lancer la Campagne de Guerre, puisque celle-ci va juste vous faire sortir du sentier. Nous vous conseillons également de ne pas tuer de monstres rares ou de récupérer de trésors, puisqu'ils ne sont pas si rentables que ça. L'équipement trouvé sur les monstres rare est en plus meilleur à plus haut niveau grâce au scaling : une raison de plus pour attendre d'être niveau 120 avant de les tuer !

If you want an even faster leveling guide ,pick up the Dynasty leveling addon. This is an all in-game WoW Leveling Guide that automatically updates as you do quests and level up. You can still level fast without an in-game addon like this but they usually cut the leveling time in half. Most of my level 90’s have been leveled with this addon and i can usually get to level 90 in less than 3 days.
Once again, as soon as you hit 70 - I recommend to go and learn faster flying. This speeds up your questing A LOT, and is worth the time and gold. It will cost 4500 if you go to the capitol, or 5000 if you prefer Shattrath/Dalaran, because you will not have reputation with them at that point. This price will sadly be above what a totally new character can afford, if you don't have any Main. But you should go and buy flying as soon as you have enough money.
So this is all from my understanding but with the scrapper it seems to be that you get materials based on the type of gear that you are scrapping. I.E I got more ore from scrapping plate gear and more cloth from scrapping cloth gear. Trinkets, weapons, and rings give different types of material and I don’t quite know the layout for that. Personally I would just DE everything as an enchanter. I stressed how important it is to trade with other players to get the materials needed to do all 11 warfront quest and you will obviously have more materials to create the enchantment that is necessary for the turn in to make trades with.
The zones in Battle for Azeroth are littered with treasures and rare spawns that give the same amount of XP as quests. With Zygor's Leveling guide these points of interest are displayed directly on your map and can be clicked at anytime to add them underneath your current guide step. The guide will then switch focus to the POI, direct you to its completion, and tell you how to complete it.
Most classes in World of Warcraft start at first level, but Death Knights and Demon Hunters are exceptions. They start at level 55 and 98, respectively. This alone can shave a huge chunk of time from your leveling experience. Of course, it only works if you want to play a Death Knight or Demon Hunter, but they’re both solid classics that can dish out damage or tank in a group.
To put that in perspective, the high-priced vanity mount released with Legion is a giant spider called the Bloodfang Widow. It costs 2 million gold. If you wanted to buy one with cash, using WoW tokens, it would have cost over $1,100 at the time Legion was released, in August 2016. If you wanted to do the same thing in July 2018, it would have cost less than $200.
 ":"  -  Any time a step ends in a ":" instead of a "." means that the next step is part of the current step you are on.  This generally means the next step should be done while working on the current step.  This means every "start working on" or "continue working on" will end in a ":".  But this is used with other occasions as well, so keep this in mind.
My toon was a monk, a class that gets extra experience for an hour at a time. I picked at it more than I have in the past, so I benefitted more from the 150 percent "rested" experience bonus. If I wanted to run a dungeon for quests, I fired up a high-level character on a second account and dragged my little toon through them. And having leveled dozens of characters to 100 and 110, I knew every zone and every objective.
Something to keep in mind as well is that this will make enchanting materials more valuable, since it is likely most players will now simply scrap their boe greens instead of getting them disenchanted. Also redundant dungeon/raid gear can be scrapped rather than traded to the (guild) enchanter in the run. Less stuff gets disenchanted, meaning there will be less ecnhanting materials, meaning their value will rise. All the more reason to DE rather than scrap as an ecnhanter.