I’m going to recommend based on two factors, how much upkeep you have to do and story.
My Forged Wedding Party
Destined to Love
Princess to Be
Sweet Scandal Returns
Royal Midnight Kiss
Those are the ones I rec to my friends who are first time players that just want to dip their toe in. Most of these are very vanilla. After you have played a few and have an idea on the things you about a game, then you can venture out more. Try some other titles. There are some games out there that are gonna hard hit your nope. But you should try everything once you have some idea on how the games work.
I would stay away from events for the time being and focus on playing the main game.