This repo contains userscripts that will redirect to an open-source, non-tracking alternative.
Not a perfect scenerio but still useful when folks send you links.
I like to install these with Violentmonkey which works on all the popular browsers.
reddit-teddit.js
redirects to (i.e.) https://teddit.net/r/KenM/twitter-nitter.js
redirects to (i.e.) https://nitter.net/drilyoutube-invidious.js
redirects to (i.e.) https://yewtu.be/watch?v=6wchqfLA5d0
Currently not working, thanks Mark
instagram-bibliogram.js
redirects to https://instagram.com