Here are some other ways to say goodbye in French, depending on the context:
* Salut: (informal, similar to "bye" or "see ya")
* À bientôt: (see you soon)
* À plus tard: (see you later)
* Bonne journée/soirée/nuit: (have a good day/evening/night)
* Bonne chance: (good luck)
* Prends soin de toi: (take care of yourself)