I have a G2 engine, and I keep one of its slots loaded with a giant FX processing patch with my OT’s cue output running through it.
Nord modular is AWESOME for processing. The micromodular doesn’t have any delay or verb FX, but I love it for filter, phaser, vocoder, all manner of distortion, etc. Really cool stuff.
Here’s something to try on day 1: route drums through a wavefolder with an envelope follower patched to the fold amount. Mix in the clean signal to get back the low end if you need it. And saturate to taste at the end. I love that sound.