Want to give these libs some theory to read but think they'll be scared off by Marx and Lenin? Anything a bit more SocDem friendly that gets the basic points across - class consciousness, why they need to organise and how etc.?
Shoer articles preferred but anything will do tbh
Seconding Second Thought, also adding First Thought!
This series by Jacobin is IMHO a really good primer into leftism for libs: https://www.youtube.com/watch?v=BDg71ql7zQs&list=PLxlNhP2f0kULW8hdxvfF6ZcDbndpvF8Sb
I found a YouTube link in your comment. Here are links to the same video on alternative frontends that protect your privacy: