Okey I can list two characters I know who have somewhat long dark brown/black hair.They are from Inuyasha
because that's the manga I'm reading and most familiar with. ^^;
Sorry,bad pic but you see how long his hair is.Here
is a little better picture if interested..
Sorry if it doesn't interest you in any way but I can't help so much more because Inuyasha happens to be the only manga for the moment that I'm reading and know much of. ^^;