Nostalgic series, such as gardenias blooming, those flowers … singing and dancing.
There are also a series of European and American golden songs. Choose things that are easy to learn.
I suggest asking. If Ms. your is young and fashionable, you'd better ask her and ask her for advice. Really not good. Find a music teacher.
After all, there are many online videos, which are easy to learn and suitable for almost any dance.
The dance is longer. Then edit it and dance for a long time.