I say this from a very distant view of a very distant observer. Alternative coins that have been most prominent in all of my research and daily readings are of course Ethereum, Litecoin and Monero. Even Dogecoin has a lot of news and mentions, despite it not being otherwise a progressive coin, but I can understand how a strong community can carry it through.

The rest seem just like ICO projects with unnatural mentions with a fickle community mostly complaining about price.