There are so many raids that drop mounts and any raid that isn’t current content typically has a 1% chance, or less, of dropping a mount. So you should settle in for many attempts and become accustomed to disappointment. This is my current, weekly farming route for raid mounts. The route is subject to change as I acquire said mounts; thus the potential for multiple parts.
There are a few addons and weakauras you can use for mount farming. Rarity seems to be the most popular mount/pet/toy farming addon. It’s highly recommended by my guild mates. I’ve just started using it myself so I cannot provide too much feedback, or support (at the time of this post).
You will also need your Hearthstone (which you should always have) and I would also keep your Dalaran Hearthstone handy. Also, make sure you have lots of space in your bags and a vendor mount is super handy (such as the Traveler’s Tundra Mammoth). Since some mounts only drop from specific difficulties I suggest to always have your Raid Difficulty set to 25-Man Heroic.
I’m a little over a month into my World of Warcraft hiatus. While I do miss logging into my Paladin and hanging with my raid team, I’ve been busy tanking it up with my Sith Juggernaut in Star Wars: The Old Republic. I was fortunate to get into the beta of this game way back in 2011 and I loved it. As I 
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The concepts in this post will be fairly esoteric if you are not familiar with many of the game features in World of Warcraft. Also, this will likely be a bit of a soapbox as I’ve grown weary of the emphasis put on Mythic+ dungeons. Sorry Blizzard, I just don’t care for the Mythic+ system, in fact I think Mythic+ dungeons are obnoxious.
For example, my gear score on my raid toon is 360. If I want ilevel 360 gear to drop I have to get a keystone for a Mythic+7 or higher. Which means I have to do at least 2 or 3 dungeons before I even get the appropriate keystone, then I have to complete that dungeon. You also only have a week to do this (as all Mythic+ dungeons and keystones reset every Tuesday). Of course what gear you get is completely random so there is a chance, that after enduring all of that, you could get a piece that you can’t even use. As your gear score increases, so do the number of Mythic+ dungeons you have to complete within a week.
We are about six weeks into the eighth World of Warcraft expansion. The Battle for Azeroth has begun; the Horde and Alliance are engaged in fierce warfare to control the Azerite. The first raid, Uldir, is available and Blizzard has already announced the first content patch, 
As much as I do like that Queen Azshara is mentioned a lot, I’m still not as into the story as I was in Legion. Granted, I don’t think it’s as weak as the story for Warlords of Draenor but the whole “Horde vs Alliance” feels a bit cliche. Perhaps the reason I’m not as into the story is that I actually like Sylvanas and the fact that she’s lost her mind is fantastic. Unfortunately, 98% of the community disagrees and they all hope she dies (btw, I even play Alliance). I’m sure I will be labeled a traitor when I say, I really hope we don’t kill her; in fact I think she’s under the influence of Queen Azshara. While I don’t think she makes a good war chief, I would rather over throw her than kill her (thus killing another Horde leader).
The two new world mechanics in Battle for Azeroth are Island Expeditions and War Fronts. These are essentially the evolution of scenarios. Island Expeditions is a race to farm Azerite; that’s it. They developed an algorithm so each time you enter an Island Expedition it’s different, however its only different in terms of terrain and mobs. The objective is still ALWAYS the same. Island Expeditions feel so lackluster that I’ve been renaming them to “Island Adventures”. There is good news. I believe Blizzard has plans to make some changes so they are not so terribly bland.