Basically all of them.

The value is basically impossible to target since the blockchains are silos at this point since there is no standards among blockchain developers. Go to bitcoin, learn one thing. Head over to ETH, another thing. Steem is still another.

That said, there is a ton of Wall Street money about to enter which will find its way into all coins. My suggestions, load up on as many coins as you can. Do not put all your eggs in one basket but do whatever you can to accumulate a variety of different coins.

We are at the beginning stages of this technological revolution. Sure many coins might end up worthless but there will be 10,000 and 100,000 multiples out there.