Any kind of danmei where characters are trying to solve a mystery whether it be procedural, political schemes, or supernatural phenomenon (since that’s what I mostly see on this site)  Since I’ve always loved  the solving something type show and novels, I still watch detective Conan from time to time lol, I’m trying to look for BL novel of those kind. Actually, just might be an excuse just to put peerless in another list since I love it so much oops.