in my opinion the best and safest cryptocurrency for investment is bitcoin, ethereum, eos, litecoin and bitcoincash. these coins are favorite coins that might provide great long-term profits
Favorite is favorite, but the best is still unconfirmed and even I believe there is no best place because investment is based on many factors and low and high changes of the market to make money, and if there are one hundred coins in the market, it will be a hundred different changes, similar to a thousand, even more. So depending on the time and trend, we will analyze and get the best crypto information for investment, can't narrow the scope as you say, the range you say is only the safest.