I think discord in particular would be a great place to recruit new users from, but i think one thing that could expediate the arrival of the specifoc people you want is to have communities they might find interesting.
So Maybe make a community specifically for chinese people/ about china, and post some stuff there (memes are pretty handy at getting people to stay on lemmy!)
That way when you ask people to join lemmy, you have a sales pitch in the form of existing communities they'd like.
Some selling points we have at the moment are:
- dank memes
- real people, minimal/zero AI
- in depth conversations
- Simplicity of site
- quietness/peaceful (though what we're advocating for here seems to be to change that, which is also fine)