In my opinion, some of the best are:
Wacoin
Bitcoin Cash
NEO
Gas
Populous and Spectrecoin
And of course the etherium is the guarantor of high reliability and stable growth.
Exclude bitcoin cash obviously. It's not good for investment. NEO is a good one to make investment in it. GAS also is like the part of NEO and it's good as well. Populous is in hype stage, spectre is another hype.