I’ve had some good fun running the mix output of some Digitakt drums through a Moog MF Drive. Crunches up nicely, the filter is obviously very playable with trebly hi hats and snares and such and you get a one knob EQ to balance things out a little. CVing the filter cutoff is also obviously some nice rabbithole to get lost in if you’re into that.
Bitcrushers can also give you some real dirty crunch, sometimes even some vocal (?) type of sound if you push it far. I’ve only ever done that in software though to treat samples and loops, but I’m sure there are some cool pedals out there as well.