Satosumi Takaguchi is one of the best mangaka out there. She (probably she) wrote critically acclaimed manga about yankii girls and female juvenile deliquents, before she wrote yaoi. She wrote a straight romances with a girl who dresses as, and is usually asumed to be, a guy (though she doesnt speak or pretend to be one, just dresses like one) and a male PI who dresses as a girl for cases, with scenes where the girl watches him change. She writes m/m/f threesomes and yakuza manga, and girls that play baseball, one plain and boyish, the other physically pretty girly-girl. Shout out Loud is probably her most traditional yaoi manga, in terms of character types, because in most of hers... well, how a character looks does not inform how they act, their sex and sexual preference doesn't determine personality.