I wrote a handy blog post about precisely this, 70+ podcasts covering EA, rationality, philosophy, futurism, economics, psychology, geopolitics, self-improvement and more: https://noesis-space.blogspot.com/2018/10/a-long-list-of-podcasts-you-might-enjoy.html

I personally prefer audioooks, but here are some past threads with podcast recommendations:

• Audiobook recommendations by Capla (and some more in the discussion)
• Goobahman requests audiobook recommendations
• Wiki page with rationalist podcasts
• Grognor's podcast and audiobook recommendations
• Nick Beckstead audiobook and podcast recommendations
• Deluks bi-weekly rational feed's podcast sections (linked is one example)
• James Miller's podcast
• Wallowinmaya's request for podcast recommendations

Obviously, this shouldn't preclude other people from giving new recommendations, and if someone is up for it, I would also be glad if someone would go through all the threads I linked and compile all the recommendations into one big list.

I listen to .epub files with FBReader and TTS plugin on Android.

I will take pdfs, plug them through toepub/com and listen to them too.

I have also added photo-ocr-pdf-text-epub-audio to my pipeline sometimes.

I am used to the generated speech and I listen faster than I could read with my eyes. Roughly 400wpm