If you have to choose dance, belly dancing is better and it doesn't require much space.

If the shaping effect is good, Latin dance and ballet are good.

You can find some material, such as CDs, and dance along. Do some basic ballet movements, some of which are simple but very shaping. It is also the basic step of Latin dance, and the effect is very good. Just can't take it out to perform, but it is very helpful to shape temperament and figure!