I'm fond of this filter:
https://www.modulargrid.net/e/eowave-tempete-magnetique
and one that is smaller:
https://www.modulargrid.net/e/supercritical-synthesizers-neutron-flux
For "dark ambient" the Nautilus as a delay processor would be a good addition:
https://www.modulargrid.net/e/qu-bit-electronix-nautilus
Now that you are "down the rabbit hole," you'll constantly switch modules and such in search of what is best for you.
Have fun 8'). Think of it all as a haiku poem, getting as much out of a small framework as you can. Going big prematurely
costs a lot and can be wasteful. Concentrate on one module type at a time, and winnow things down.