Short sweet, and to the point.

Sanctum of Domination:

Hazelnutty Sanctum of Domination Raid Boss Guides
Mythic Trap Sanctum of Domination Raid Boss Guides (starting at the Tarragrue)
Sanctum of Pineapples mechanic minigame
Wowhead Sanctum of Domination Guides – Wowhead

Tazavesh Megadungeon:

Hazelnutty Tazavesh Guide
Mythic Trap Tazavesh Guide
Wowhead Tazavesh Guide

Mythic+ Guides:

Tormented Affix Preview
Class Specialization Mythic+ Guides – check your spec page for tips on what anima powers to take with the new affix