Poloniex is an established crypto to crypto exchange that is based in the United States. It offers a large selection of tokens to trade and has high liquidity. Poloniex was hacked in 2014, and lost more than 12% of their bitcoin supply. They have improved their security protocols since then. In February, 2018 Poloniex was acquired by Circle, one of the largest crypto payment providers.

Trading Fee: 0%-0.1% Maker and 0%-0.2% Taker
Deposit Fee: Varying Depending on blockchain fees
Withdrawal Fee: Varying Depending on blockchain fees
Number of Tokens/Coins: 97

CoinBene is a cryptocurrency exchange that launched in November, 2017. It has quickly become a top 30 exchange by trading volume. CoinBene has offices in several countries and its website is available in multiple languages.
Trading Fee: 0.1%
Number of Tokens/Coins: 110
CoinBene released the Coni token to raise development funds. Coni token holders receive dividends and discounts on trading fees.

The Biki Exchange is a cryptocurrency exchange that is based in Singapore and primarily targets Chinese traders. The exchange issued the BIKI token, which provides holders with discounts on trading fees, as well as other benefits.
Trading Fees: 0.15%
Withdrawal Fees: 0.001BTC/per trade and 0.01 ETH / per trade.