Project: We are working on automating the content writing process. Articly (https://articly.me) is a automated content strategy and writing platform. You give us your site or product and every week our platform sends you a new article to post to your blog.
As an American on-again, off-again expat, I have long thought that there should be good money in getting educated native speakers in "cheap" locales to write and edit stuff.
I know a few Americans and Brits who make a good (local) living as editors for various organizations that need to publish things in correct English for, say, the EU.
But your idea seems like it would scale much better. At the risk of everything sounding like it was written by a milennial backpacker. :-)
Best of luck with it!
We get our writers from all over, almost exactly as you say. My business partner and I are expats in Asia and have made a good network of US and U.K. writers looking for work as they travel.
That and freelancers who've applied through the site. :)
We automate a lot of stuff to help lower costs for our writers and we have writers on staff from our agency that fill in the gaps and do editing.