2 options in my mind:

BTCPay Server You build your own free server to receive Bitcoin and Lightning payments. You are in control 100% of your data: https://btcpayserver.org/

OpenNode Easy to use third-party Bitcoin and Lightning payment system. You pay only 1% fee. You can connect this account to your bank account (receive in fiat money) or transfer the BTC paymento to another Bitcoin wallet. https://www.opennode.com/