WeChat but you need a mainland Chinese citizen to verify your QR code which only lasts 10-20 minutes. Even Hong Kongers can't verify non-Chinese citizens.

I was able to get this in San Francisco with relative ease, and when I accidentally gave the CCP my address book, pretty much all my asian contacts were already on it.

Maybe also easy to get verified with the student body of major universities.

For an example, most recently, I was trying to verify a client exists and couldn't find anything on Google, but when I had the mental spark to check WeChat they had a whole business page, lots of updates, easily accessible representatives, followers, accolades, etc.