I would like to add:

BBC’s In Our Times with Melvin Bragg. A weekly podcast featuring experts in a myriad of subject matter

http://nautil.us/ Nautilus Science magazine

Public Domain Review. https://publicdomainreview.org/

Excellent articles

Thank you very much for the extensive list. I would like share your list on my website of www.spazhousellc.com. I will be following your articles in the future.