If you're looking for manga similar to Konoko Doko no ko Kawaii ko, you might like these titles.
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?
You know you've made errors in your life when you're at a wedding and simultaneously realize that 1. You're gay 2. You're in love with the groom and 3. You're a tender uke built like the manliest of macho men. And thus, Haneru has no other option but to go into a depression for 3 whole years - until a certain divorcee moves in to live with Haneru's family...
In a parallel universe four continents lie isolated, each with a different culture and inhabited by a different race. The only transport between these vastly different lands is a train that runs through the sky, connecting one country to another and facilitating inter-racial (and inter-species) romances in the process.