I have full audiobooks up on the site, like The Fiat Standard, Democracy, The God that Failed, The Fourth Turning is Here, Layered Money ect...

I don't think I would be able to host them on Github

Yeah but it requires people that want to download the file to install TG as well. 
Are you sure you’ve exhausted all free file sharing options? Dont know what exactly you want to share but github might be working for you.

inverselarp

I'm not able to host pdf files on Nostr, Show me a client that does and I will.

+TG let's me upload up to 2 gb per file

ghostcountbtc

bitcoin

Bitcoin Reference Repo (Telegram Group) BTC Info - Free Books Share Files 👀

How on earth people in this space still use Telegram? Freaking Russian spy tool and everyone just LARPing freedom here?