Judging by not within its popularity and market price? Sometimes if you are planning to invest into something you need to have something to consider and that's one of the reason why many are losing their money because they never consider the market price and popularity. Popularity helps and as well as it's price.
the top 20 in market capitalization I think are all very good coins. I will hold them. ,btc,eth,ada,neo,eos
This can be the safe haven of best among the rest.