Tsubasa to Hotaru, Harumatsu Bokura Recommendations
The theme of 'basketball' is exhibited in both mangas. The female protagonist finds herself surrounded by basketball players and inadvertently falls for one of them, particularly the one with black hair. Rivals are present in both mangas. Both mangas do have their differences, as in Haru Matsu Bokura she secretly meets the boys because of jealousy and popularity, whereas in Tsubasa to Hotaru, she is the manager of the basketball team.
If you have read one and enjoyed it, you may like the other.