I think the only thing I categorically don't like (and I listen to crazy weird stuff) is probably speedcore. It just sounds like noise to me. For anyone who's not a fan of rap or hip-hop, I suggest they look up instrumental hip-hop or some jazz-hip-hop fusions. And as for country, may I suggest steering clear of contemporary country rock (or songs about running over a dog in the rain while having wife issues) and looking for folk songs (Show of Hands omg) or old-timey country? Also, Korkiplaani is one band in a very neat genre called Scandinavian power metal (really just power metal, but Scandinavians have their own way of doing it so yeah--music spergpurists come at me bro). Sabaton is another example, and so is Nightwish, and Finntroll sort of comes in, though they're less "power"y and heavier. Or getting into much heavier stuff, check out Lordi. Lordi is nuts. Or hey, while I'm rabbit-trailing, check out industrial bands. Rammstein is kinda the prime example.