1 Bitcoin Cash - now on a downtrend but using the larger block size faster transactions and still cheaper to invest in than bitcoin. This is a second chance for people to make some money! Also it has the name of Bitcoin. I foresee growth in 2018 for Bitcoin cash and since it's price is nice and low, I'm buying!
2 Monero
A truly de-centralized privacy focused , undervalued coin! 2 major darkness markets have adopted Monero and if you like your transaction to remain truly anonymous get Monero. Price is low, this coin has potential (using ring signatures for privacy) and an awesome development team behind it. Nano Ledger support is being developed!
3 Bitcoin
Has been around for years and we WILL experience many pullbacks and corrections, so it's not for the faint of heart. If you invest in Bitcoin look at is as a long-term investment. A pullback or uptrend from $1000 in just 2 weeks is not unsual.