Like the female lead likes other guys instead of the male lead (who protects her and has a crush on her) but she slowly falls in love with him.

(Like nene and hanako-kun)

Also, maybe other romance mangas where the male lead is clingy and possessive of the female lead (not really in a yandere way, but that can be included as well)

No yuri or yaoi, romance is a must. Hopefully romance where the male lead blushes a lot. Thanks in advance