All sorts of stuff.
J-Dilla, Dinosaur Jr., Misfits, Big L, The Antlers, LCD Soundsystem, Bloc Party, The Submarines, Tapes N' Tapes, Elzhi, Husker Du, Minor Threat, Say Anything, Yeah Yeah Yeahs, Blu, Wilco, Japandroids, Kitten, Cro-mags, The Libertines, The National, TV On the Radio, the Scientists, Clap Your Hands Say Yeah, The Growlers, Beach House, Tame Impala, 7 Seconds, Band of Horses, The xx, Eyedea & Abilities, Adolescents, My Bloody Valentine, Born Ruffians, The Cure, Bruce Springsteen, Crystal Castles, Leftover Crack, Morning Benders, the Drums, A Tribe Called Quest, Spoon, the Blow, Phoenix, Talib Kweli, Slow Club, the Knife, La Sera, New Order, The Toadies, 2Pac, etc.
There's way too much music out there to limit yourself. The only genres I haven't really gone out of my way to appreciate are D-beat or country outside of Johnny Cash.