All of them has a lot of potential since all of them is a good blockchain project. Why not sell a portion on each token that you have so that you can still have them all. No one here can give you the exact answer for this question because it all depends on the future development of the project.

But I were the one who will sell 2 coins on that list, I will choose Solana and Cardano because they are both received a too much hype already on previous bull run.