As one poster said, very short term, you can flip Ethereum Classic because they are promoting their Callisto airdrop in the first week of March.  It should have a little surge just before the airdrop and you can make some easy profit there.

Long term, Neo is great because it's still reasonably priced, it could potentially reach Ether prices if it keeps moving up its market cap, and also generates GAS for you while staking in your wallet.  A lot of upside for this.  

Bitcoin would be a great buyin at the next dip because it will eventually pop and go past the $20K mark.  I would try to set aside fiat for the next low buy-in and then hold long-term.