I've been hearing some people very happy around here with some Presonus interfaces for indie recording, rehearsal live mixes, etc. Generally better priced than, say, Focusrite Clarett interfaces, maybe a a couple fewer features, but in my experience still sounding quite good. One night of recklessness, I DID invest in a Focusrite Clarett 4Pre USB, then made some money back using it freelance, but then have also been very extremely happy with its results.
If you need to record separate tracks, the way to go is a multichannel interface. If you're sure you'll just be recording to a 2-channel mix for demos, you can find some VERY affordable Behringer, Mackie, Alesis, Yamaha, & some other brand mixers with USB interface connectivity. Just do a lil research to ensure they'll go stereo and you can have good rehearsal mixes/simple recordings for not too many doubloons.
Only other thing is, unless you're really throwing bread at the duckies in the pond, you'll only have one or two headphone outputs integrated. So a small headphone amplifier will be an additional purchase, but as long as everyone can agree on a universal mix, it can be pretty inexpensive and work fine.