Since you seem to want to make a profit in the short term, I'd probably go with EOS.

It's not a good long term investment in my opinion, but there is legitimate potential for it to increase in price drastically this year because of the fact that the main net is scheduled to be launching this year, and that can cause a lot of hype. Buying some now during the dip could be very profitable, in my opinion.

Also IOTA, it's not listed on bittrex or poloniex, and prices have surprisingly stayed relatively quiet during the past few months. I think that could be a good short term investment as well.