Of course there are many exchanges, I might not mention up to 10 but can give account of those I have consistently and they looked satisfactory. Another thing is, we should be responsible of our funds security. The first is Binance exchange, with its mobile app which is constantly updated, it makes the exchange easily accessible not to forget it's trading features. The second would be Okex owing to its strive for remaining relevant and useful. Okex is followed by Gate, Kucoin, BitMax and Huobi. This is my opinion of course.