As a veteran dance band leader, I have a bit of advice, or warning, or whatever--Different groups have their own sets of favorite tunes--best to talk to the leader about what they like, and learn a couple of those first, and then find a couple of really fun novelty tunes that no one has played to death--for some reason, "I Want to Be a Cowboy's Sweetheart" popped into my head--Many of those popular standards from the twenties are or can be played as two-steps--