How can I recognise fascist punk bands?

Oi guys. Recently I found out about the story and way of thinking of skinheads, and I'm feeling more and more attracted to the culture (before I had the societal view, but I got informed).

The thing is that lately I've been listening to a lot of punk, and when I searched for skin punk in Spotify I came across a couple of playlists and songs. So I created a playlist and added some cool songs in it, and realised I don't really know what to look for in some groups and songs that tell me they might be nazis. I don't care if it's just antisystem punk, like NOFX, but I don't want to have nazi shit in there.

For example, one of the groups I have in it is The Skinflicks, and yesterday I saw their "Beyond Good and Evil" album cover, where there are 4 guys and the one on the left has a symbol that I don't recognise but looks a lot like a broken sun cross, or a black sun. I'm not saying that it IS that symbol, but it just kind of rubbed me the wrong way when I saw it.

So yeah, is there a way to recognise when a band is nazi apart from obvious lyrics or symbols like a swastika, celtic cross, double lightnings and all the obvious ones?