Bittrex is a good cryptocurrency exchange that provides you the option to trade more cryptocurrencies at a time. They are  well regulated and compliant with all of the current rules, so crypto users need not to worry about the safety of their funds. Bittrex handles one of the largest BTC trading volumes out of all the exchanges in the world.And I like Binance and Kucoin. Although Kucoin doesn't have so much volume as Binance does but I think Kucoin have a chance to be as big as Binance. Kucoin has lower buy and sell limits and lower fees. One thing that irritates me about Binance is that you are always left with dust. I have a lot of coin that somehow weren't sold fully. Kucoin doesn't have that problem. In general, both are good. They are quite easy and user friendly. Kucoin candles carts look a little bit nicer and more convenient to look at, though.