Eventide DeBoom and Sheen Machine are free until December 31:
https://www.eventideaudio.com/split-essentials-giveaway/

UAD just launched a Save The Music Holiday Bundle
to support the foundation.
https://www.uaudio.com/uad-plugins/plug-in-bundles/holiday-charity-bundle.html
The bundle includes:
LA-6176 Signature Channel Strip
UAD Ruby ’63 Top Boost Amplifier
Verve Analog Machines
Pultec Passive EQ Collection
Teletronix LA-2A Classic Leveler Collection
Opal…Read More

https://redrocksound.pro/en/macwin/

https://www.airwindows.com/cans/

Body Builder adds quick and easy thickness to your audio.
https://streakyaudio.com/
99$