If you're looking for manga similar to Koubutsu wa Ichiban Saigo ni Hara no Naka, you might like these titles.
One morning, Otokita Hideto wakes up with cat ears. He consults a friend, and ends up going to a research facility, where he’s discovered by super-otaku research worker, Nakabayashi Kouhei. Excited by the curiosity, Kouhei takes Hideto home with him?! This is the cat ear hustle mating season!
It was fierce love at first sight! When the adorable cub Mr. Wolf carries away to his cave turns out to be a wily tiger boy, little does the sly hunter know that he’ll soon become the submissive wife to his manipulative (but charming) captive! When Mr. Tiger calls the shots, Mr. Wolf can’t help but bend to his every whim. After all, who could possibly resist such a handsome, furry face?