At the present, There are so many exchanges. Here are the few of it,
1. HitBtc
2. Okex
3. Idax
4. Idex
5. Tidex
6. Binance
and etc... But personally, I'm really like to trade with Okex and Binance. These two are great for me. There are high-quality features and very fast works. Both platforms are looking amazing. Besides, there is high-security and nice volumes.