Why are you looking for just only one altcoin? there are thousands of them at the moment, and each one of them has a different function on the entire cryptoworld. i suggest you to make your own research about that.

I suggest you to take a look over Elixir, and Dragonchain, they are fixing and solving a lot of troubles on the entire world, just take a look over them, seriously, i invested a lot of money on them.

And they can easily give you a x10 in just a few months from now.