What kind of cles do you suggest??

I am interested in joining some kind of recreational cl to keep me active and fit. I just cant make up my mind about what to go into. I'm thinking something like kickboxing... i'm 19 almost 20, im a female, and i have a son so i need to work that stress out you know? Please give me some suggestions , comments, or experiences you've had with any type of cl you've taken, thanks.