I was recently looking for a exchange that also got some less popular altcoins like ELIX, Groestlcoin and Smartcash and found Coinexchange.io. They support about 350 altcoins and tokens, which is really a lot. Plus they have a nice and userfriendly UI and fees are good too.
In case you dont't find out how to deposit coins: Under "balances" click the blue action buttons in the coin list.
https://www.coinexchange.io/?r=b3729039
