>>21910723Iroha wasn't a Suisei fan before holo too much but she pretty surely is now
La+ is a Shion gachi
Gura -> Shion
Lamy was a fan of Senchou
Sakamata is a fan of Senchou
Watame named Okayu as one of her oshis really early due to voice
Noel -> Subaru might be kayfabe BUT
most singers are moist for Towa (now)
Kanata and Suisei were mutual fans at the beginning to the point that she was part of Suisei's live
Polka loves Mumei somehow but she's been in the industry for long enough that "fan" might be an overstatement
many more I don't remember.