Not really :'D I don't think any of my ocs would have crushes on celebrities like... even though Theo would occasionally "(insert famous person's name)" is hot AF" having a crush is different :'D

Tina, surprisingly, never had any crushes, even when she was a child. And as she grew up, the idea of romance kept being pushed further and further away from her mind...
Cedar and Nera both are next gen OC's so this one would depend quite a bit snfndmf but I believe Nera had a period of time where Lisia was her celebrity crush.

Elio's celebrity crushes in-universe would easily be Kukui, Raihan, and Leon (borders extreme satyromaniacal fantasies - which he THANKFULLY has under total control), while he often fantasizes about performing the forbidden handholding ritual with Cynthia.