Tal Dub and Tal chorus are both free, and used considerably by myself.
Native Instruments :
I use Abletons convulsion reverb a lot, and have amassed a nice library of IR files so I have emulations of Lexicon, Space Echo etc, plus the standard stuff is really very good.
Voxengo do a nice selection of free and laid for vsts from vintage delays to spectrum analysis
Glitch by Ill Gates is fun, but can get samey if you don’t work with it.
Focusrite Red plugin suite is OK. Compressor is the standout plugin.
I used to have the T Rex mastering suite and Ozone on the old pc, but the when I moved to a new set up, I slimmed down my vst collection (also I moved to 64bit), and a lot of these are now gathering cyber dust on a hdd.
I’ll go through my library at some point and update you.