There are a lot of coins which are good and are worth investing in, I hold these coins which are also my favorite coins etc, dash, omg, neo, ltc, komodo, civic and nxt. I might  consider these coins as the best if you are willing to hold for long term investments. Byteball and gnosis are also some of the good coins to hold for short term investments. Lastly, monero is one of the good coins with great potential, I have some that I have earned through mining.