KuCoin: Lots of “hottest cryptocurrencies on NEO are coming out. It seems like they have the first dibs.
Bittrex: Next generation digital currency exchange. Probably the largest and most advanced.
Binance: Based in Hong Kong. Very progressive and they add a lot of quality coins/tokens.
Cryptopia: A cryptocurrency exchange based in New Zealand. Lots of gems in here.
HitBTC: Lots of Gems on Here
Gdax/Coinbase: Most people don’t realize GDax is owned by Coinbased and coinbased is a simplified version of a way to buy crypto. But GDax fees are way less.
There are fiat/crypto exchanges where you can exchange USD/Pesos/Euros for cryptocurrencies, and then there are crypto/crypto exchanges. So, you have to purchase crypto with fiat and then transfer your cryptocurrency to an exchange. But the future lies in decentralized exchanges (DEX). A lot of projects are building a DEX so that people don’t have to rely on Bittrex, Binance, etc.