In my 7U 84HP I’ve got a Pico DSP (and I’ll likely get another one at some point as I really like it), a Chronoblob delay, an 1U Intellijel reverb and a lot of my modules can do some sort of overdriving (CP3 mixer, Ultrafold, Mikrophonie, Cinnamon) and there’s some filtering in there too.
This being said, while I really want my 7U to be a full instrument by itself (with a quNexus and a small keyboard for the Teletype), I’ve just got enough space in my 1U row to add an Intellijel Pedal I/O module, which would be nice to use my EHX 22500 looper with the modular but not necessarily at the end of the chain or to use one of my Smallsound/Bigsound pedals (probably a Mini), as they’re the best overdrives/fuzzes that I know of.
I actually have a small pedalboard (Boss PS-3, ss/bs Mini, Boss RV-3, Boss PS-3, EHX 22500) for my Yamaha Reface YC keyboard that I could use with the modular but that’s a bit too much, especially as I’m trying to make the modular as standalone as possible.