I want to study Oxford’s “English Language and Literature” without going in debt for it. So far I’ve found a couple of PDFs which provide quite a reading list and the course’s structure, but it’s no course content. I’m really curious if there’s a place for what I’m looking for.
MIT OpenCourseWare might be close enough to what you’re looking for.
https://ocw.mit.edu/
And accompanying lectures on YouTube:
https://www.youtube.com/user/MIT
This doesn’t answer OP’s question, but since other people might be interested, MIT also has free graduate level courses. If you choose to pay for a certificate of completion for the courses then they can also count as credits towards a degree at MIT, Harvard, etc.
https://micromasters.mit.edu/