I think Coinbase, Kraken, and Gemini (but I will not recommend using Gemini, due to the recent lawsuit against it, from the SEC, as Gemini was alleged to trade in illegal securities) and just to remind you that's the same reason due to which Binance have to leave the US market. So I would say avoid Gemini at the moment.

Strike, an app from El-Salvador, can do the work, but just to clarify, I am against such programs and especially in the centralized banks or exchanges.
Should we still choose FTX even after what SBF (CEO) did with it, well, at the first place, choosing a centralized exchange is itself a bad choice in the sight of many but, if OP doesn't care about that, then FTX might not be the best option. Just a thought, what do you have to say?