1. Electroneum (ETN)
2. Tron (TRX)
3. Reddcoin (RD)
4. Siacoin (SC)
5. Dentacoin (DCN)
6. Verge (XVG)
7. Bytecoin (BCN)
8. Digibyte (DGB)
9. Dent DENT)
10. NEM (XEM)
Even if Ripple (XRP) is undervalued right now, I choose not to buy because it's centralized and controlled by banks. I did buy it before, but I exchanged it with TRX. I think it would take a long while for the market to recover because the bloodbath is not yet over. Plus, I expect it will dip even more when Chinese New Year comes.
I have bought some trx, dcn, xvg and nem. Maybe I will research and consider the others that you suggest here.