Freeware - Platone Studio Flex Reverb VST Plugin

https://platonestudio.com/product/flex-reverb/

Flex Reverb by Platone Studio is a FREE, high-quality plate reverb with a handy graphic EQ. The plainly diffused sound of the automated reverb EQs can take your music (and your audience’s experience) to the next level. Listening to demos will prove, that this is the reverb you need. Easy to use, sounds convincing, and is completely FREE!