Allie's Ahsoka is obviously there. She would have helped with tours and even though she hasn't been a part of the Order for a long time, answered all questions to the best of her ability.
Allura helped with setup, and would have taken a tour and stuck around for most of the day. She finds everything about the Jedi Order absolutely fascinating, so this is definitely something that she found very enjoyable and interesting. She also would have helped Obi-Wan with anything he would have needed during the day, and helped organize tour groups for the residents giving the tours if needed.
Those were my main ones helping out. As for taking tours, Daisy and Donna would have definitely gone. Courtney would have gone, and seen if everyone in her house would have wanted to go, too. Ochaco would have seen if Ben wanted to go, and Katara would have gone with Aang or the other Avatar people. Hilda would have also been interested in going, as well.