My husband and I just switched to Mint Mobile. It's on T mobile's network, so if that works for you, you should be fine. We haven't had any issues with it and it's super inexpensive and also allows you to prepay for up to a year I think.
They run some crazy good deals as well. My husband needed a new phone and they were running buy one year and a phone, get a year of service free. I bought a buy 3 months, get 3 months free plan for $45 (so that was my total cost for 6 months), and then was able to get $15 back from Rakutan as well. I also then went ahead and just paid for another full year on top of that, so I have no phone bill until June 2023. We got the lowest tier of plans - unlimited talk and text, unlimited data but 4gb at 4g+ speeds - which more than suits our needs.