1) First of all, I would recommend watching the japanese (Hana Yori Dango) and chinese (Meteor Garden) versión of Boys Over Flowers. I personally enjoyed both and since you watched the korean verison, they may suit your taste
2)Falling for Innocence - I would say this is a slow burn romance. After certain circumstances, the male lead falls in love for the female lead first; the more she rejects her the more he falls.
3)Personal Taste - Female lead thinks male lead is gay. They end up living together, he develops feeling first. One of my favorite scenes is the "game over Kiss" you should search it up if you are doubting whether or not to watch it
4)Reply 1997 - Male lead is childhood friend. So she doesn't consider him a love interest, so at first is pretty much one-sided.
5)The Heirs - Poor girl/rich guy plot. He fall first