If you can, match your entertainers to your entertainment venue. If your space is cramped, a strolling magician might be a better choice than a rock band, which requires a stage. On the other hand, if you have plenty of space, dancing is a great idea.
It's hard to go wrong with ballroom dancing. If you're hosting a big event, you could do worse than to rent a large entertainment facility with a dance floor or two, and the appropriate big band, singers, and other entertainers to go with them.