I'm personally a fan of the old stuff (Count Basie, Duke Ellington, Cab Calloway, Chick Webb, Jimmie Lunceford, Slim Gaillard, Ella Fitzgerald to name a few) but the best thing you can do is go to dances and lessons, and when you hear a song you like, go up to the DJ and ask them what it was. The best music is the music you like and that makes you want to dance, regardless of who made it.