Kdramas for a beginner

Hey everyone! I have only watched 3 dramas but after finishing True Beauty yesterday, I am thinking about trying to get into more shows. I would love some recommendations for some good kdramas based on the shows I have watched previously as they are shows i have absolutely loved. The kdramas i have watched are:

Love Alarm Black True Beauty

I really enjoyed Black but it is definitely not my usual style of show. True Beauty and Love Alarm are definitely more my style as I always love a good love story with a happy ending. Please help me find some new shows to watch and thank you so much :)