anyone know of any delinquent mangas that are not bl or are not romance oriented?

say no more ;) http://www.mangago.zone/read-manga/nyankees/

Here ya go:
http://www.mangago.zone/read-manga/crows/
http://www.mangago.zone/read-manga/nyankees/
http://www.mangago.zone/read-manga/great_teacher_onizuka/

Weak Hero

it's a free webtoon on webtoon