If you mean payments for when you are selling something on your site, then yea BitPay is one option(even though I hate paying through BitPay). An alternative is BTCPay[1], though I really don't know which is better. Proceed with caution as I really haven't tried implementing either on a website myself.
If you mean for donations, then you can simply add in a wallet address and a QR code somewhere on your site.
[1]
https://btcpayserver.org/I know i heard about coinpayments, but I am not sure that is an option, as I am not very tech enabled, or guru status there....
I never heard of BTC pay, so maybe that is another route?