One of my grandaughters quit gymnastics after her Level 8 season and started competitive rock climbing...which she absolutely loves. Didn't see it mentioned so thought I'd mention it as another option. She told a friend in another state and that friend also switched sports to rock climbing...same thrill, a bit less injuries.
may i add "olympic weightlifting" - usually a perfect fit. former gymnasts do usually extremly well as weightlifters, especially the women.
to give you a general idea what olylifting is about: you lift lik a girl, a recent video of california strength (olygym): You Lift Like A Girl - YouTube
One of the girls from our gym graduated highschool last year and is now on the crew team at the university of San Diego. Never did crew until she got there.