Omegaverse
Tsuki ni Hoero
I. Werewolf Model and his Bodyguard II. Werewolf Model Agency President and Assistant and Ex-Model III. FBI Agents IV. Classmates, one is uber-popular with women but is a virgin IDK if I may have forgotten some stories. My favorite would be the last story.
If Dogs Could Also Walk
Multiple stories of animals turning into humans. Meh plot.
Hide and Seek
Multiple Chapters but the first story is about a guy who finds his rival dating his sister and fights him in the street because of it. Other stories that I recall are about: 1. Wrestler and a pervy sponsor 2. Little brother obssessed with his older brother 3. Nerdy dude thats in love with a delinquent looking dude 4. Werewolf village 5. Guy in love with his senpai who's actually in a sexual relationship with the professor I forget the others but yeah.
Uwasa no Oujisama
Multiple Stories but the main one is probably the one about a princely character and a guy who loves sweets. My preferred one is the couple that are already together.
3-manen no Kareshi
Main story is about a guy who broke up with his lover who is married already. Due to his sexual frustrations, he decided to rent a boyfriend. Rest of the stories are about an uncle and the friend of a nephew. And a vampire and his victim.
Tsumaranai Otoko