BTC
it's very hard for any top 100 coin to make x1000 or even x100, at the same time it's 100% sure that many coins are going to make x100 or even x1000, but it's also very hard to find them, we must look at small caps quality coins, with solid teams and serious projects, some of those nominees :
Quantstamp QSP
VIBE
AdEx ADX
Bluzelle BLZ
NCASH
Oyster PRL
QuarkChin QKC
Unify
Wabi
BTC