https://libro.fm/ is DRM free. Each purchase gives a link to the raw mp3 file and a share of each sale goes to a local bookstore of your choice. They also offer a subscription comparable to audible of you like that style.

The New Enlightenment does awesome theory heavy videos on economics, politics, game theory, etc. It’s like a free economics course and it sparked an interest in the subject for me.

https://youtube.com/@thenewenlightenmentwithash8465