The Jedi Classes r:
Jedi Consulars:often Force-sensitive intellectuals such as librarians, seers, or researchers. Traditionally represented by a green-colored blade.
Jedi Guardian:put most effort on combat training while receiving only fundamental training in the Force. Traditionally represented by a blue-colored blade.
Jedi Sentinels: strived to achieve complete balance between combat and Force training. They were usually versatile in terms of skills, possessing many abilities. Traditionally represented by a yellow-bladed lightsaber.

u can also choose what you r Jedi Master over like, Jedi Master of water or things like that. May the Force b with u!