A manga where the girl is strong and a delinquent

Oresama teacher? It's really funny tho

Like strong female lead?
Maybe you'll like it

http://www.mangago.zone/read-manga/switch_girl/
http://www.mangago.zone/read-manga/anatolia_story/
http://www.mangago.zone/read-manga/takane_to_hana/
http://www.mangago.zone/read-manga/kaichou_wa_maid_sama/
http://www.mangago.zone/read-manga/tail_of_the_moon/
http://www.mangago.zone/read-manga/strange_dragon/

also.. they are shoujo

I really like that one too

I liked this one:
http://www.mangago.zone/read-manga/gokusen/