Metro By T-Mobile works well, if you navigate through the website to find the $25/month ($30 without autopay or for the first month) postpaid unlimited plan. It is a T-Moblie MVNO.

It is hard to get eSIM to work, but they have good customer service (but you need accses to a phone to call them, so you should try something like textnow or Google Voice) which helped my friend set it up.

It is not a intruductory offers, AFIK.