Based on my experience, I have only 3 in my list: The first is bittrex which is the number one exchange and second is Cryptopia and the third is Bitgrail which is mainly for XRB traders.
After bitrex. You can find the polenix, finance, ether Dela andcso on. Choose the right exchange which you like or the exchange contains the more number of coins in the market.
When you check in the coinmarketcap site you may find most of the token coin added to the bitrex only first so check the coin in that site and go for trading.