GSE and trinity team questions

[Jabberie]

I am going with Shaman and priest for my healers for my main 2 teams.
They haven't changed a lot from Legion.

For doing autonomous dps, you want to stay away from procs sort of. So for example fire mage is not really something to easily macro. Arcane is ok but you still have to manage Mana phases.

My picks are
Tank : DK, Pally, Warrior
Healer : Shaman, Priest
DPS : Elemental shaman, BM hunter, Destro lock, Balance druid, Arcane Mage(sort of, see above)

All very good GSE dps for boxing. I dislike melee unless doing all slots. I tried doing mixed and it's too annoying to handle.