What dance class should i take?

I love theater and singing. I can not even remember the day that i began playing the violin because it has been there my entire life. I also play a slew of other instruments, but especialy enjoy singing. From singing I discovered the theater which i love. To combine the two, I have been looking into a future in Broadway musicals, but I am not trained in dancing. I was wondering what kind of dance would prepare me for this. I am 16 now and am fit because of high jumping and pole vaulting. Any help here?