My number one plugin for tonal correction and resonances: hear it!

And I am not talking about Soothe (or SPAN in the pic, ha, this is something much better).

You will hear a really resonant synth, and see how I am fixing it with my number one tonal corrector that sure is worth its weight in gold.

I use it on sounds as well as masters.

Especially every time I think there's a tonally complex sound that needs heavier lifting, I often use this to do at least some of the work and give me info on where to cut. And it doesn't only cut resonances: it often improves the overall sound, as you can hear.
Always learn about frequency ranges!

Will do more of these short-form videos about plugins and mixes and productions, to be more digestible. Want to give you these good plugin tips. I will add none of the plugins I will show you, ever, will be something I am "shilling": I actually use them all and will have you hear why.

Enjoy the ride!

BTW there's cheaper alternatives I use sometimes:

Waves Curve AG - I've used this a few times. It takes a bit more work as it has more settings, but can't fault it price-wise.

If you want resonance-only on the cheap: Phil Speiser - Smoother. Cannot boost, but it is cheap for resonance shaving, and once again, not bad for the price!