I think many do...but QuadrigaCX is one. Probably more useful for Canadians like me who will want to get into Canadian $ though. Not many cryptos available, just BTC, ETH, LTC, BCH. On the plus side they seem very reliable, don't really get some of the horror stories about problems withdrawing, whether crypto or fiat.
Bitfinex
I think many do...but QuadrigaCX is one. Probably more useful for Canadians like me who will want to get into Canadian $ though. Not many cryptos available, just BTC, ETH, LTC, BCH. On the plus side they seem very reliable, don't really get some of the horror stories about problems withdrawing, whether crypto or fiat.