Not sure if it's the same one you're referring to but I've used Kraken a fair bit, they have a pretty decent selection and are fairly easy to use. Anymore I use Binance alot, although I believe you'll have to use BinanceUS unless you use a VPN. KuCoin, Voyager and Crypto.com are all seeing lots of users migrating over, so many in fact that they've had a little trouble recently keeping up. Are you looking for mainly the big cap players or also for smaller up and coming projects?
