I'd recommend the After later audio Tilt as a small function / envelope generator, although you probably want more LFO and modulation sources too. I only recently realised how much tilt could do and for the size of it it's fantastic. (There is a divkid video on YouTube)

The make noise contour is discontinued, but it's another small-ish envelope I'd never want to take out of my case

Maybe the ochd is worth considering for a boat load of LFO in a small space.

Add filter flavour to your own tastes, I recently fell in love with the ritual electronics altar and it's made me appreciate all of my filters more ☺️