Welll Here A few I've watched . . I'm on the Look Out for some too >_<
There's (my Избранное one) Gravitation . It's Funny, Cute and Great Story Line . . But I suggest to read the Манга First. Infact it's Still Going On
There's Junjou Romantica . VERY FLUFFY! and There 3 Яой pairings! =O
There The Two I've Watch and I Loved them both . . But I went online for Ты and Serch up a Список for Ты ^w^
After School in the Teachers` Lounge Ai no Kusabi Angel's Feather Antique Bakery Be-Boy Kidnapp`n Idol Boku no Piko Boku wa Kono Mama Kaeranai Bronze: Zetsuai Since 1989 Enzai Fake рыба in the Trap Fujimi Orchestra Fuyu no Semi Gakuen Heaven Gravitation: Lyrics of Любовь . .< NEVRE KNEW ABOUT THIS NOW!? XD
Haru wo Daiteita Ikoku Irokoi Romantan Kasho no Tsuki Kaze to Ki no Uta SANCTUS -Sei naru kana- Kimera Kirepapa Kizuna Kizuna: Koi no kara Sawagi Koutetsu Sangokushi Kusatta Kyoushi no Houteishiki Kyou Kara Maou! Lesson XX Level-C Loveless Marginal Prince Mirage of Blaze Mirage of Blaze: Rebels of the River Edge My Sexual Harassment Okane ga Nai Papa to Kiss in the Dark Princess Princess Ryokunohara Meikyuu Saigo no Door wo Shimero! Saint Beast Saint Beast ~ Ikusen no Hiru to Yoru Hen ~ Saint Beast ~ Kouin Jojishi Tenshi Tan ~ Seikimatsu Darling Sensitive Pornograph Sukisho Yami no Matsuei Zetsuai 1989
Now Last . . . Ouran High school Host Club . .. Ты could Maybe Say this is a Яой Because Mori and Honey-Sempai Are In Любовь (I think) and we have the All mighty Twincest XDD It's Has Very Яой Bit's in it But it's not the main thing and There is a Girl which the Twin have a crush on and The main host =/ But Try it anyway!
I believe Samurai 7 may have some shonen-ai, but not "YAOI yaoi" if Ты know what I mean.
Also, Хеталия has a lot, and I mean a LOT, of Яой fanfictions, but I don't think the actual Аниме has canon yaoi. It does, however, have some shonen, because of France and his rose. -.-