The free or very cheap VST you trust and use ?

I am a hobbyist not a pro, so almost all my plugins are freeware.
I could give you a full list of about 300-400 dll files i have in my plugins folder... but it would be much better if you said what exactly do you need. :)
 
I think reaverbate sounds like shit, use reaverb with the bricasti impulses instead. Note that you can use it for guitar impulses if you wished

This is what I do. I use either Bricasti or Echochamber room reverb samples. Between those two libraries you could probably find a reverb response for any use.
 
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Free:
Pretty much anything by Bootsy for mixing tools.

Onqel's stuff for pedal emulations. I use his tubescreamer, bass driver and rat clones often, and they never disappoint. Tubescreamer sounds pretty cool on gritty vocal automations, and the rat clone is now my favourite bass distortion (together with a cab impulse).

TLS limiter. I like this one better than some paid limiters. Very transparent.

ReaEQ for surgical cuts.

Cheap:
VibeEQ for colourful boosts; especially the shelves. I only wish it had more frequencies to pick from.

Rocket compressor: fast and gritty if you want it to be. I like how it has the positive traits of an 1176, but also a definite character of its own.

ToneBoosters Reelbus for tape stuff. I own Slate's tape plugin, but still use it here and there.

Klanghelm DC8C compressor. Has an easy-mode and I-love-buttons-mode. Does quite a few different characters very well. Hard to describe the character of this one, but "smooth" comes to mind. In the expert-mode it's extremely versatile, but also a bit daunting to get your head around at first. I strongly recommend to read about how different compressor-designs work to get the most out of it.

The M30 reverb is not bad by the way. I got it for free a while ago on some special they were having. It's only the Hall part of the algorithm, but I use it regularly. My only gripe with it is that it isn't very tweakable. The plus side of that is that it's easy to set and forget. I use it as a tracking verb for vocalists. It's light on CPU and they are more inspired by it, so I'm happy.
 
The M30 reverb is not bad by the way. I got it for free a while ago on some special they were having. It's only the Hall part of the algorithm, but I use it regularly. My only gripe with it is that it isn't very tweakable. The plus side of that is that it's easy to set and forget. I use it as a tracking verb for vocalists. It's light on CPU and they are more inspired by it, so I'm happy.

honestly, using this reverb helped me a lot at one point - it helped me grasp what a truly bad sounding reverb sounds like.

i'm pretty shocked it's made by TC Electronic, those guys make some badass gear.