Neo is the really obvious one and even though it's in the low 100's, I think it'll approach $500 before year's end.  It's starting to gain momentum for platform use and it's growth potential will follow Ethereum from last year. 

As far as privacy coins, I have a personal bias for DeepOnion (because I have it in my port).  It can follow a similar trajectory to Monero but it needs to be added to more markets and hit the attainable roadmap they've set for this year.  At less than $5 a pop, a total supply of 20 Million and a Coingecko score over 50%, I think it has massive growth potential in 2018. 

Other honorable mentions would be WaltonChain, VeChain and AppCoins.