I use di.fm quite a bit, but would like some with maybe a little less electronic/dance focus sometimes Ofc last.fms similar option is pretty nice as well.
last.fm Type a band you like in the search at the top, then click "listen to the [band] radio" eg. "lady gaga radio" which will then stream songs of bands that are similar/you may like which you can favourite or skip or just leave to play as a radio great for finding new stuff you may like imo
last.fm deffo the best imo if you want to see my face search for doodlenoodle i think my name was... but its not all my music there gf listens too!