Not from the mainland "officially," most Chinese gay porn is posted on wechat first and then Twitter or, onlyfans if the creators have pages or websites.
I do know that a few Chinese/Taiwanese Onlyfans creators that have done scenes in Japan for Trance and GBOT.
- Victor Grande (Trance)
- ChiaFu (GBOT)
- WaterJohn (GBOT)
- Morgenbiggen (GBOT)
- Duncan Ku (Trance/Gdude/PF)
- Don (GBOT(?)/PF/Gdude)
- Yowei Hsu (GBOT/PF/Asianed)
- MOK (GBOT he has a dvd)
- SEXTOYFORFREE (GBOT)
However, there are several studios based in Taiwan that make Chinese studio porn. There was GDUDE but I think they shut down last year. American studio Peter Fever has done some scenes there as well.
Of course there's always the many erotic muscle photobooks that are published in Taiwan, Indonesia, or Thailand too. Some issues come with videos.
As Bellatrix said, the newest is Gaydar, started by ModelMedia, a huge Chinese straight porn studio. Not sure if it's available for customers outside of Asia to buy yet. This website is in mandarin.
MODEL also started an English studio based in London called Asianed Y+Y that they started with Ugo Mason, Tyler Wu, Noel Lu, and Yowei Hsu. That website is accessible to foreigners.