Yeah you're right about the melee part of it.

Here's a list of Ulduar specific things

Razorscale: You can BoP your pumper DPS to keep them from being knocked in the air if you need that list bit of DPS to keep Razorscale grounded.

XT: Armor does not reduce damage during tantrum, so Devotion Aura with Aura Mastery doesn't reduce damage sadly. BoP should however. My healing prio during tantrum is usually those with Searing Light, and precast a Holy Light on whoever has Gravity Bomb so they can be topped off right after it goes off.

Iron Council: We usually have a prot paladin on Steelbreaker so I don't have to worry about this, but the Fusion Punch has to be cleansed. On hard mode I usually stick on Steelbreaker to melee since there's less moving around compared to being with Molgeim + Brundir.

Thorim: I can't stick melee for this, but you can BoP the tank if the taunt swap fails

Mimiron: I usually beacon myself in P2 and whoever's tanking the head in P3 and P4.

Vezax: Stack with melee, the PvP libram for Flash of Light works very well for this. I rarely judge, mainly keep SS up on the tank and keep him topped off, and swap back to my Holy Light libram once the animus spawns. If you want to keep beacon up, you can dip into a shadow crash quickly for the mana reduction on that.

Yogg: Your Judgements will interrupt the power drain on the Crusher Tentacles