My list from a few years of exploring and mixingā¦
Fabfilter
Overall probably the best suite of plugins Iāve used and own.
In particular, Pro-Q 3, Pro-R (close to actual reverb) Pro-C 2 and Pro-L 2
These are typically my go to workhorse plugins.
Valhalla
Delay, Supermassive (free), Space modulator (free) - Amazing must haves reallyā¦
Plate, Room, Vintageverb - Fantastic for the price, but more an effect reverb than any kind of āactualā reverb
Pluginalliance
Shadowhills compressor - Lovely glue
Black Box HG-2 - More lovely glue, saturator or full distortion.
Oeksound
Soothe2 - Try it anyway
Waves
Abbey Road TG Mastering Chain - Lovely EQ & Filter sections
Reel ADT - Amazing on so many things, piano in particular.
Abbey Road Saturator - Fantastic & flexible saturator
EMI TG12345 Channel Strip - Ballys compression & saturation for drums in particular, sucks out some mids which usually helps alot of the time.
SSL G-Channel / SSL G-Equalizer - Just excellent
Klanghelm
MJUC - great very warm tubey compressor, will take the edge off anything.