Hi!
I have some suggestions, but remember: This is not a buying advise, do some research and make your own judgement:
Short/Mid-term: F1rstblood (1st). It looks like it's about to rise. High potential in a "new" sector!
Long term: NEO. This is really interesting and innovative technology. Not to mentioned it has originated from China and will probably be very big there. Huge potential!
Long term: Verium/Vericoin: Verium is the "gold", Vericoin the "money". The dual blockchain "Binary-Chain" is really interesting and solves many of the issues Bitcoin and other cryptocurrencies face. This could grow high!
All of these can be found on Bittrex.
Happy investing!:) (And do not invest more than you can afford to lose!)
-Sim