Which character's freetime events should I do? (SDRA2)

Currently at Chapter 3 (just about to do the trial). Currently have Yoruko's, Mikado's, Kanade/Hibiki's and Syobai's ^{is it Syo or Sho??} freetime events done. Currently plan to do Yuki's and Teruya's.

Give whatever you think is best- is it best for the story? is it your favourite? is it the best for gameplay? do not tell, so that I experience as little spoilers as possible 🙏🙏