TikTok content is mostly visual. My YouTube shorts are frequently foreign language with AI subtitles.

Also, TikTok is banned in India and—ironically—China [1].

[1] https://en.m.wikipedia.org/wiki/Censorship_of_TikTok

English is literally the most commonly spoken language in the world. No language in the world will fit your criteria if you want more than two thirds of the global population to speak it.

That doesn't sound accurate. Did you mean as a first language?

As their first language, perhaps