I was exploring this a few months back. If you’re in the U.S the choices are slim, just spritz.finance and BitPay are available. Far as I can tell bitrefill ended services for U.S customers but still operates for other nations. 

I did try spritz and BitPay. Neither are great and I hate saying it but BitPay was the easiest and cheapest option 

Maybe nostr:npub1sg6plzptd64u62a878hep2kev88swjh3tw00gjsfl8f237lmu63q0uf63m & nostr:npub1cn4t4cd78nm900qc2hhqte5aa8c9njm6qkfzw95tszufwcwtcnsq7g3vle can push nostr:npub1cashappn03s3cl2ljsdntv0v28e2um5lgx4vjctqjt23pcwzjhsqmtdg5l or nostr:npub1ex7mdykw786qxvmtuls208uyxmn0hse95rfwsarvfde5yg6wy7jq6qvyt9 to help us out in the future 🤞🏻