Kimi ni Todoke.. very cute, the boy is super popular and the girl is very timid and very... well I wouldn't say weak but "fragile" would be the correct word..but she tries her best to be more social and confident I honestly love her character and the male lead falls in love first.... I really reccomend this it's super cute!
Toradora is a great one too the relationship between the two leads is very sweet. And the girl is strong yet fragile and is nicknamed "Tiger" because she's fierce.
Honestly most shoujos in anime always have a female lead that's very weak, cries most of the time and can't do anything by herself which I honestly can't tolerate. If you want a really good shoujo/romcom with a headstrong female lead then I suggest you start reading mangas as the best shoujos unfortunately don't have any anime adaptation.
Here are some great manga believe me you won't regret reading.
Takane to hana
Last game
Taiyou no ie /House of the sun
Kiss yori mo hayaku / Faster than a Kiss
Ookami heika no hanayome / Wolf King bride
Dengeki daisy
Love so Life
Kimi ni todoke (since the anime only has 2 seasons)
