Do you have any public React code-bases that you look to as good examples of a large project?

One that comes to mind for me is https://github.com/twilio/twilio-video-app-react. It's TypeScript, has good test coverage, a good folder structure and more.

I'm onboarding some junior developers, and would like to show them some well-developed practices that are not just Medium-esque articles.

Thank you.