If you're looking for manga similar to Kyou Kara Onnanoko!?, you might like these titles.
A young boy discovers his girlish charms to fight back against his older brother forcing him to crossdress.
A boy who wonders why his younger brother Yuuki started dressing like a girl, and decides to see what all the fun is about by trying on some of Yuuki's clothes.
A guy gains a younger step-brother named Aoi after his mom remarries, only to discover later that Aoi enjoys cross-dressing.
Kawaii Makoto is a 16-year-old boy, who adores things with heroes above everything else. In addition, he dreams that one day he too could be one. This is a story that tells us how he eventually becomes one, even if it didn't go exactly how he imagined it to happen.
A trap named Nono goes to his lesbian friend, Sei, to become cuter than he already is...
Set in feudal Japan, Sorano is often mistaken for a girl, and he is saved one day by Iori from some pushy guys; the two hang out together the following day.
Tomo Fukuya loves taking pictures of himself while cross-dressing, and he's gained some notoriety among his schoolmates because of it. He participates in his school's beauty contest during the school festival against his friend Kei Okabe.
Yuuki Narusawa is a male college student looking for a tutoring job. He runs into Ryou Misaki, who is in search of a tutor who looks good in a maid uniform.