I recommend binance.
Binance is a Hong Kong-based crypto exchange launched by developer Changpeng Zhao in July 2017. Zhao Beijie Technology Company created the exchange after its successful ICO managed to raise as much as $ 15 million.

Beijie Technology and its founders maintain an impressive track record in the industry. CV Zhao achieved a high profile position, such as technical director at Blockchain.info, and his company now provides a trading system that has more than 30 other platforms.