It's difficult to comment on the merits of any coin, so I'm not sure what people mean by "shit coins." All altcoins are highly speculative, so your best course of action is to look at the merits of each coin based on whether or not they have actually received some sort of regulatory report, on the basis of their team and advisory team, and on the basis of their target market/scalability.

To be honest, I think there are a lot of great projects, and you should do your research to distinguish the good from the bad.