I've been told by someone who found out that I ship them that Haru and Makoto in Persona 5 is a "galaxy brain" ship which I imagine is akin to a rarepair so that's one of the first ones I can think of. I've slowly warmed up to the Kita/Nijika rarepair in Bocchi the Rock! in that they both in an alternate universe as gyaru gals who are extremely flirty with each other would be really cute and good!!