Are you from there? Or do you want to do missionary work for other parts of the world?
Because I would need some more information on the ‘target’ people. What kind of social media do they use currently in that country? Is Reddit even a thing there or do people there maybe don’t even need a good alternative to that? Maybe they like to spend their time on Twitter / Mastodon over there.
I know there are quite some Japanese people on Misskey. And I’ve seen lots of Spanish and French content on Peertube.
Ah yes. And you absolutely need admins/moderators who speak the language.