You're right. Cv modulation brings life to patches. May I suggest to you those two well thought and affordable modules: Ochd (LFOs) and Rnd Step (S&Hs) by DivKid.
We only have 2 hands. They give us 14 more within 8hp :))
Among my first sparks for modular (and a new form of collaboration) there was this jam session. I felt in love with modular because I saw the ideal complement to my traditional synths and opportunities for live improvisations jams. Berlin school is great for that. Enjoy:
'On ne devrait jamais quitter Montauban' (Fernand Naudin).