This Thread is thought to be a Collection (and Discussion) of good (Free) Software, Plugins and Virtual Instruments or even Hardware you use alot
I for example am a Big Fan of Sknoteaudio.com (especially Marconi, Sdc and StripBus) and Fuse Audio Labs Plugins, the Vqp-154 Eq is on all of my mixes
And Good News is they just came out with a Free Eq today https://fuseaudiolabs.de/#/pages/product?id=300965965
Good Free Stuff i also use is:
Airwindows they got a big collection of simple Userinterface Effects, so no fancy Gui's but the sound is what matters to me
worth to checkout: Desk, Dustbunny, Totape, Busscolors and many more
Shattered Glass Audio's CodeRed Free for one of Beatles Console Pre and Eq
Klanghelm's Mjuc Jr. for Vari-mu compression - super creamy for Vocals and Basses, Ivgi for Saturation and they have some other good stuff i'm sure you can put to use
You are welcome to share your Gems too