While you're looking for good exchanges you need to do some research. In the basis of volume, circulation, security, wide usage and liquidity. Nowadays exchanges are getting frame because of their community fame.
If the have a strong community, they are ready to put their money in the the new IEO whichever coming from that exchanges.
Best exchanges as my knowledge,
Binance
Bitrex
Bitmax
Etherdelta
Cryptopia