I would suggest that you go to a local dance hall and check out what works best.
Any dance band should play what the dancers dance best to.
Sometimes you will see people run out to dance, and then not be able to work with the music. They will usually sit down before the song even stops playing. (That is a hint.)
If you hear a waltz played, and everyone is up dancing and smiling, it might be a good song to keep.
If the dancers do not get up to dance, it might be a record to play frisby with.
In the old days, Disk Jockies would play a song over and over before they put it into their record case. They would look for the timing that was most easy for the dancer to follow.
These days, you either get International timing, (Really fast fast dances, and really slow slow dances, that are difficult for the average dancer.), or they just toss anything they find into their case.
A good person to ask would be Helmit Light. (Spelling is wrong.)
He has a band in Baltimore Maryland. (I think.)
Good luck, we really need dance bands.