It should be Obi-Wan, after going into hiding from the empire…. he can travel around doing good deeds.
At some point he settles down on Tatooine, presumably to keep an eye on Luke, but maybe not right away. Maybe he traveled for years before then. Maybe he needed to do some missions to ensure other Jedi were hidden (like Yoda). Or just to make sure that anyone who knew or found out weren’t able to tell anyone.
The way I see it, the show would need to be Kenobi organizing Jedi witness protection…. and doing what needs doing to make sure the hidden stay hidden. I wouldn’t mind if he saved some of the Jedi trainees either. Little kids in training, saved before Anakin got to them, and he needs to find them homes.