If there are 7 or 8 people, I suggest you find TARA's dance or girlhood's, FX's is also good, but it is relatively difficult and not so simple to learn. (Of course, there are also many small women's groups that are also good choices. )

Here are some songs that I think are suitable for you. You can go online to find teaching videos:

TARA——ROLY POLY, this kind of dance was once popular in Korea, with simple movements and cheerful songs.

TARA——LOVEY DOVEY, I think it's a little more difficult than the one above. The pace under your feet changes a lot, but it looks especially good when there are many people, I think!

Girlhood-Gee, I don't need to introduce the popular Divine Comedy, but I suggest you don't choose this one. This one is studious, but there are too many people dancing, which is not new.

Girlhood-a world of reunion, this is highly recommended! ! ! If you are good at dancing, this is the best choice for your May 4th theme, which is absolutely positive.

Girlhood -My Oh My, the latest Japanese song, with cheerful tunes and lovely movements.

FX-La Chata, this jump is very domineering, but the difficulty is slightly higher.

FX-Danger, this is quite nifty, I recommend it.

Powder A-Nonono, a popular song recently, is simple and easy to use, but the action is not as good as the above songs, I think.

Girls' Day-don't forget me, is a campus feeling.

-leverage, a group of crayons, has been skipped in our school. It's a lovely type, and it's easier.