US 7-11's absolutely do not have this service, and you're lucky if you find a grocery store that has a photo copier these days (was somewhat common in the 90s).
There's also reprographics places and most shipping stores do printing as well.
None of that is as convenient as a home printer, though. If you can get a decent color laser and lightly use it, it should treat you well for quite some time. Inkjets don't really like light use though, although I have fond memories of first page time on the ancient Deskjet 660C and 720C.