Hi I am looking for suggestions about crypto currencies exchanges that support alternative coins and don't have high fees like Coinbase(I know Coinbase doesn't support alt coins) has. I have a Kraken account but they don't support some of the coins I would like to trade. Please consider security, alt coin support and fees. Thanks
Polo, bittrex, and liqui. All of them are best exchange sites right now. But looks poloniex is overloaded right now. So that will take more time to doing anything on polo. Bittrex is the best choice for your in this time.
The responsible exchange site.