I find it harder to actually get more monero than it is to spend it.

Cakewallet (a wallet app for Monero and other crypto) has a giftcard service that I’ve used before. It works well, but it was down for a little bit because of regulatory concerns.

Monero is also pretty easy to convert to other Cryptos on non-kyc exchanges, so if a vendor accepts another crypto (USDT for example), it’s usually pretty easy to swap back and forth.