Hanzo-sama from Tail of the Moon (full of bishies and it's also a reverse-harem, CHA-CHING!!)
Saitou Yakumo, copycat of L, but who cares? He's hott! from Shinrei Tantei Yakumo
Royal Seventeen. Allen is hot! and so cool.
Dreamin' Sun. Fujiwara Taiga, Tatsugae Asahi, and Nakajou Zen <3
Magnolia. Yugo Wolf (<3), Sui Godwin, and Nagi Oliver (<3). Bishie overload!!
Sensei wa Ore no Mono. Tachibana Kyou.
Tonari no Koigataki. Icchan and Hiro. Icchan FTW!
Hitoribocchi wa Samishikute. Takagi Nao. He looks so hot here <3
It's Not Like That Darling. Yukiya Nagase XD
Mairunovich. Kumada Tenyuu (brown haired guy on the left!)
Bokura no Himitsu o Kyouyuu Shiyou ka. They're all hot but Jinno-kun is the best! (dark brown haired!)
Triple Kiss. Sasegawa!! (Black hair)
Strobe Edge. Ren (the guy on the right).
Tonari no Kaibutsi-kun. Yoshida.
The Other Side of the Mirror. Lou.
Watashi no xx Shinasai. Kitame Shigure,
GDGD-Dogs. Mitsuo, Dan, Fujio.
Mishounen Produce. Kousei, and Tomoe-sempai are the hottest!
Shiawase Kissa Sanchoume. Ichirou-kun, the emotionless pervert and Shindou-san, the scary hot tempered!! <3
Why do you have to be so hot Ichirou-kun!? He somehow reminds me of Usui....
Antique Romance. Ian <3
I can't remember the name of the manga

just saw this from my stash of screenshots...
Kimi to Koi no Tochuu. Shiina-kun!! His kindness melts my heart!! X) Aikawa Saki's mangas have really hot bishies!! Though some look the same...
Not to mention Skip Beat's Fuwa Shou and Tsuruga Ren (<3), Gakuen Ouji's bishies, Vampire Knight's Zero and Kaname, Kaichou wa Maid-sama's Usui, La Corda d'Oro's instrument playing bishies and etc. XDDDD
Hope you got burned from these hotties X)