Probably etherdelta or cryptopia. Even hitbtc joins the group. Coin exchange.io,not much but they also have a lot of coins. All these exchanges list a lot of new icos in their exchanges and newly forked coins. This should help you out but be careful. They already have a lot of issues. Just check out the scam accusations board and use the search bar and type the exchanges name in it, you'll find numerous accusations against the exchange.