Okay um so I hope no one hates me for this but I'm actually not a fan of ritmob/mobrit. I don't hate it and I still love Ritsu having a complex but incest has just never really been my thing. Now when it comes to ritrei/reirit I really only like it if it's a complicated situation kind of thing. Maybe reigen has unrequited feelings for Mob and ritsu has unrequited feelings for Reigen so when Mob leaves and Reigen is miserable, ritsu steps in but it leads to many messy situations like Reigen calling Ritsu Mob during sex and such. Ik its kind of weird and picky but I'm all for support of those who create content for such ships.