I would highly recommend McLayneSims on the sims resource has a lot of really nice japanese/korean streetwear, there is also yellowjealousy has some traditional japanese outfits, Kijiko mainly has hairs that look sort of anime like, Studio K Creations has some nice stuff mainly streetwear.
Not sure, I know Reminisims makes Chinese fantasy themed clothes but I don't think that their tumblr is active anymore, I found this https://b931723.tumblr.com/post/146043952883/chinese-boys-wedding-dress-download and this https://www.thesimsresource.com/downloads/details/category/sims4-clothing-male-teenadultelder-everyday/title/male-chinese-jacket/id/1256661/ but I think that these might be some of the only Chinese cc that these creators make. Sorry I don't really know many Chinese cc creators.
Comments
CLICK THE LINKS! HELP ME RAISE MY DRAGONS!!
https://www.patreon.com/posts/29427481
http://blog.sina.com.cn/s/articlelist_1676161760_0_1.html
https://elzasims.lofter.com/tag/clothes
https://game.ali213.net/forum.php?mod=viewthread&tid=5926110&extra=page=1&filter=typeid&typeid=6077&typeid=6077
Reminisims Tumblr is deactivated as mentioned above but, you can find working links for some of their downloads here:
https://love4sims4.tumblr.com/tagged/reminisims