There's also Coinbase Commerce as an alternative. The good thing about it is that you have full control over the funds and you don't have to verify your identity, but sadly, they don't support as many coins as CoinGate does.
Wow. That is new information to me.
So you've verified that Coinbase Commerce doesn't require any ID verification? As in, there is not even a cap on the amount of crypto your store can process?
Regarding supported coins: All stores should be good with just BTC+LN, ETH, Bcash, LTC, DOGE and USDT (any network). Other coins are extraneous to most buyers, and most processors don't list XMR for regulatory reasons.