Well, lessee...do you need something more along the lines of a multitrack, or would a basic stereo pair off of the mixer via USB work? Or something sort of down the middle?
If I were facing this same problem, I would go with this as the mixer: https://www.sweetwater.com/store/detail/EPM12--soundcraft-epm12-mixer No, it doesn't have onboard FX...and you really don't want those, anyway, as they tend to be sort of "meh" when compared to outboard FX processors, and given how cheap THOSE are at present, you'd come out better populating several rack spaces with something like a Yamaha SPX90, etc. Those older FX from the 1980s have a certain "grit" to them that sounds pretty warm and satisfying.
Then for audio conversion, this: https://www.sweetwater.com/store/detail/M4--motu-m4-4x4-usb-c-audio-interface 4-in, 4-out interface, has a monitor loopback function for easier tracking against other DAW tracks, and so on. And yes, four DC-coupled outs in case you get a wild hair to do some DAW-to-CV/gate/trig fun.