I don't know much about music either - you're listing some names I haven't ever heard of before, actually.

But for a less overwhelmingly white part of Swedish music, I can mostly recall pop acts and hip-hop. Latin Kings, Papa Dee, Adam Tensta, Ken and Timbuktu are some of the bigger names in hip-hop/rap which I have both heard on the radio and seen written about. Especially Latin Kings Dogge is quite mainstreamly famous

And Dr Alban, whom we listened to a lot as kids!