The Prophet Skitra
Dark Inquisitor Xanesh
If you get knocked back too far, use Infernal Strike to reposition yourself.
Sigil of Silence can be used to interrupt an Awakened Terror.
Shad'har the Insatiable
Make good use of Infernal Strike to leap away and back to the boss. Maximizing the damage you do to adds as the boss would heal back up if you don't have the debuff to damage him.
Debuff tentacles with Chaos Brand, especially if you do not have any other Demon Hunters in the group.
Ra-den the Despoiled
Carapace of N'Zoth
The small adds will slow you and reduce your haste, you can still use Infernal Strike to move around fast when needed.
Use Sigil of Chains to gather the adds better.
N'Zoth the Corruptor
Use throw weapon to apply Chaos Brand to tentacles out of range when tanking a Basher.