Language beta for Mandarin (mostly native speaker) and Japanese (not native speaker).
Culture beta for Taiwan, maybe Japan (non-native).
Could also probably vaguely do Japanese history (esp. Edo and Meiji), pre-modern Chinese history

Canada (Asian diaspora):
Sun Sword - Michelle West

China:
Chi bi | Red Cliff
Hua Mulan
Se jie | Lust Caution
Táng Cháo | Tang Dynasty RPF
Chinese Mythology
Xî yóu jì | Journey to the West - Wú Cheng'en

Hong Kong:
Bride with White Hair
Chongqiung Senlin | Chongking Express

Japan:
After School Nightmare
Akagami no Shirayuki Hime
Angel Sanctuary
Azumanga Daioh
Bus Gamer
Cain Saga and Godchild
Cantarella
Claymore
Emma - A Victorian Romance
Gake no Ue no Ponyo | Ponyo
Guignol Kyuutei Gakudan
Hachimitsu to Clover
Haibane Renmei
Kimi ni Todoke
Kimi wa Pet
Koukou Debut
Kurobara Alice
Monster
Mushishi
Nana
Ooku
Paradise Kiss
Pluto
Princess Tutu
Saiyuki Gaiden
Seiyou Kottou Yougashiten | Antique Bakery
Skip Beat!
Tonari no Totoro
Wild Adapter
Yotsuba to!
Mononoke-hime | Princess Mononoke

Korea:
Bride of the Water God
Nabi
Take Care of My Cat
Capital Scandal
Coffee Prince
Nae Ireum-eun Gim Sam-sun | My Lovely Sam Soon

Taiwan:
Lonesome Eden
Pǐ zǐ yīng xióng | Black & White
Qing Hua Ci (Music Video)

US (African diaspora):
The ArchAndroid - Janelle Monae
Hundred Thousand Kingdoms - N K Jemisin

US (Asian diaspora):
Inland Territory (Album)
Dirk & Steele Series - Marjorie M. Liu

US:
Emperor's New Groove
Lilo & Stitch
Mulan
Terminator: The Sarah Connor Chronicles
Vampire Diaries (TV)
Nikita (TV 2010)
Aksuma - Elizabeth E. Wein
Astonishing Life of Octavian Nothing Traitor to the Nation - M. T. Anderson
Forbidden Game - L. J. Smith
Guardian Series - Meljean Brook