The best way to buy bitcoin with a credit card:

1) Get an American Express credit card with 0% introductory APR

2) Link Amex card to venmo account

3) Send money to a trusted family member or friend using Amex Send

4) Have friend send the money back you

5) Transfer the money to nostr:npub1ex7mdykw786qxvmtuls208uyxmn0hse95rfwsarvfde5yg6wy7jq6qvyt9 or nostr:npub1cashappn03s3cl2ljsdntv0v28e2um5lgx4vjctqjt23pcwzjhsqmtdg5l

6) Purchase Bitcoin