There are several of them.... no one can ever give you an answer for what to buy... I am invested in Omisego (OMG) and IOTA.
You can read this post by @mouse on what he is looking at...
https://hotcopper.com.au/threads/crypto-trading-2017.3465924/page-739?post_id=26579679#.WZdWQUF_WEc
