I'm looking for one to start accepting Bitcoin and maybe other crypto.
Here's some features that I would like:
Mandatory:
-Automatic btc to fiat conversion option available.
-Can be integrated to major e-commerce platform.
Really nice features to have:
-Segwit support
-Can also accept alt coins that can be automatically convert to fiat and BTC
Thanks!
Go with either Bitpay or Coinpayments. If you care more about anonymity then probably coinpayments but otherwise, Bitpay is the better option. Your funds are going to be safer, and there will be similar amounts of functions if not more compared to coinpayments. Bitpay is also a lot more mainstream than coinpayments, a lot of real life merchants and big international sites(i recently used apmex with bitcoin) use it as well.
But coinpayments does have an advantage - it basically supports all the active altcoins. Technically it's possible with bitpay with shapeshift, but it's a whole other step for the customer to take and there's going to be 2 third parties involved.
You can easily search for reviews for both on google. Good luck!