Made a list with a few that I saw you haven't watched
Catch Me - criminal profiler reunites with his first love that happens to be a burglar
Scandal Makers - girl and her son meets her dad for the first time and the development of their relation
Flying Colors - high school girl with bad attitude and grades and her growth
Daytime Shooting Star - adapted from manga, high school girl caught up in love triangle with a teacher and fellow student
Confession - friendship that ends up in tragedy
Brother of the Year - family realtions
Teacher's Diary - one of my favourites, teachers in secluded thailand
Your Lie in April - classical music (piano), it will make you cry
Udagawachou de Matteteyo - boy that dresses as a girl, not in a silly way but instead portrays the struggle of gender identity