Here's a couple Dan Carlin's podcasts that he currently has available for free download. "Blueprint for Armageddon" is really, really good. It's the Readers's Digest version of WWI from the assassination of Archduke Franz Ferdinand to the signing of the armistice.
It's about 12 hours long (6 separate episodes) total. Great for when cooking, working on the computer, hiking, driving etc...
https://www.dancarlin.com/hardcore-history-series/
Throw him a $1 a podcast if you like. I'm sure he puts a lot of time both producing and researching.