This is the most accurate thread about good coins. These are the coins i may recommend:
Xtrabytes 2018 will be XBY's year. It will probably be in Top 20 in 2018. With all the updates and developments coming, this is a true gem.
Vechain. If you have fund, don't miss this train. Actually get on it now because it's leaving. One of the most promising coin of 2018
Spectrecoin I agree all the abouve comments and it can easily be >500M in 2018
Everex If you missed OMG, this can be your chance.
Neblio 2018 will be its year. This is the new Stratis and could easily be bigger than it. Think about Stratis MC.
Zencash A very good Zerocoin.
Zencash, iam looking at this coin for some time and i see some good and positives arguments for this coin to just pump to the moon in near time.