Here are my picks for the next x5.  (of course, do your own research before investing)

1) Fusion (FSN): test net + main net + bigger exchanges in Q2; a lot of partnerships and announcements to come
2) SiaCoin (SC): I believe in a pump frankly speaking
3) Bitcoin Diamond (BCD): mainnet ecryption in Q2; also lightning network announcement also in Q2
4) Digibyte: hard fork in June
5) Bitcoin Cash: hard fork in May