@rewyn --- does it
have to be Open Type Font (.otf) ?
Jellby found me this batch of Chinese fonts, but they are all True Type (ttf). Worked fine for the project I was doing.
Give a look at the Wang Fonts page (zip contains over 30 fonts, different weights and styles, average 6 ~ 9 mb each)
https://code.google.com/archive/p/wangfonts/
I used HanWang_002.
The fonts are quite large, but most Asian fonts seem to be huge ---
subsetting can save some file-size. (in Calibre, or with Toxaris' "Epub Optimizer" plugin for Sigil
https://www.mobileread.com/forums/sho...d.php?t=252010)