I never was into the looper thing, but I recently came around to it being a pretty nice tool for practicing and exploring. My delay pedal has a simple looper built into it with one memory slot. I tried it one day, and I'm hooked now. That of course meant buying a real looper with plenty of memory slots and recording time so that I don't lose stuff as with the single memory slot. I recently bought a used Boss RC-3. I won't use the builtin rhythms in it, but it sounds like what you're looking for. There is also the newer RC-5, but more $. Anyway, it's just a single pedal press to record, a single press to exit recording and enter looped playback, and a double press to stop playback. Memory slots are accessed with a couple of dedicated buttons. It has some builtin rhythms with a tempo function for slowing down rhythms and recorded or externally loaded loops. A looper doesn't fit the super inexpensive point though. I know times are weird with the virus, but one of the best things you can do for your playing is to play with other people. And at this point that would be especially true if you can find some experienced people who would let you take rhythm duties. It forces you to learn complete songs, and it's motivating to play in a band. I have seen a number of people learn to play that way.