Well, I don't get it? The op is different from the title, the title of the topic says what alternative coin will have a future, but the op says what alternative coin will die, I get confused there. But I will answer both just I case, I think there are many altcoins that are worthy and doing good performance ans enough for them to use, but if I have a favorite then I will choose ETH and XRP I think these two coins will be a great use in the future, I know there's more, but I choose those two as my opinion. Meanwhile, in the question of what altcoins will die well, I don't know there are many altcoins there, and I know many will also died because they are new and can't gain any popularity from the start.