If you simply want sync, you can get the MIDI expander for Pam's New Workout.
-- Ronin1973

The Digitakt and Digitone can output DIN Sync, so you just need the $10 cable from ALM to get clock/run into PNW. If you want to sequence your modular from the Elektron boxes, you'll need MIDI to CV (the 0-coast has some capability, though it is a nuisance to use). If you want to go the other way (say, to get Euclidean rhythms driving the Digitakt), you'll want something with CV->MIDI capabilities, for which there are fewer options (but some exist).

befaco cv thing is a good example of this type of module

I'm pretty new to this, but I don't think you should base your rack on a video made by someone for whom this is just a fraction of their collection.

this is really good advice - at least some, if not all, of the youtubers who demo tiny systems are pulling modules out of much larger racks specifically for demo purposes

Also consider availability of modules. I don't know where to get the Veils 2020 at this point in time. Since your 0-coast is already on the way, I say give that a month while you learn how to use it by itself and with what you have. I bet that changes your mind on some things.

-- plragde

how to find modules (not all dealers are on there, but a lot are):
https://wigglehunt.com/?query=veils&condition=&stock_status=in_&price_min=0&price_max=5000¤cy_code=150&sort=price

"some of the best base-level info to remember can be found in Jim's sigfile" @Lugia

Utility modules are the dull polish that makes the shiny modules actually shine!!!

sound sources < sound modifiers < modulation sources < utilities