Most of the exchange which I used most often are Binance, Kucoin, Hitbtc, Livecoin, Coinbene, Coss, Bittrex, Idex, Cryptopia, Houbi, and Okex, those are good to me in my opinion. But still there are lot of exchange out there which I think you can probably choose that the best for you, you can check it at coinmarketcap.