I research about this all Altcoin and i think the all altcoin will good profitable coin for future.
Not all altcoins are profitable in the futureAnd from the list you gave, I am only familiar with KSM and DOT, but among these 2 projects that I think have very good development and have more opportunities in the future is DOT
I am only familiar with DOT. But checking this KSM, it says Polkadot's wild cousin. Don't know what that means.
The same founder with Polkadot, Gavin Wood. And from the website, it states that they are nearly similar with the codebase of Polkadot. So I can assume, KSM and DOT have the same owners. But don't know what factor deviates from one another. But in terms of popularity, I believe DOT has advantage over KSM for the moment. Regarding profitability? We don't know how much.