I totally feel the same way.
Some synths that I own that give me that kind of immediacy:
DSI OB-6 – relatively “limited” but it’s hard to make it not sound great and it always sits nicely in a mix
Novation Peak – Really hands on and amazing sound quality – you can get tweaky with the mod-matrix or keep it simple with the front panel. You can really push this synth into abstract territory that at times reminds me of sounds I’ve gotten out of Buchla machines.
Korg Ms-20 – I actually don’t own this anymore, but this is just pure classic techno – always sounds awesome and powerful