I never tank any multi-tank duties for the simple reason that I have no idea how to go about it.
Out of every tank guide I've watched or read (and there are quite a few of them) , every one of them completely abstains from talking about how to tank anything above dungeons apart from the bare basics of "Don't die" and "Face the boss away".
As such, things like aggro management, designating MT vs OT, tank swaps, OT mitigation and other such things are completely alien to me. The 3 times I've tried to tank any such duties, the boss spins like a tornado and kills everyone when I thought I was the main tank.
Could an experienced tank recommend a guide or give some pointers on trials/raids/alli raids please?