Tropes and Pairings I would do

★ Hearing x Deaf
★Introvert x extrovert
★ Modest/Ace x Openly sexual
★Roomates
★Theif x Detective
★Mermaid x Human
★Shy x Motherly and affectionate
★Master x Servant
★Owner x Pet
★Mute x Hyper and won't shut up
★Angel x Demon
★Mafi x Innocent Girl
★Pirate x Mermaid
★Vampire x Blood Slave
★Human x Unhappy Ghost
★Beauty and The Beast
★Nerd x Beauty Queen
★Fashion Designer x Model
★Queen and Beloved servant
★Arranged Marriage
★Kidnapper x Terribly optimistic
★Siren x Deaf
★Princess x Forest Creature
★Royal x Villager
★ Assasin in love with target