Second on all of Dan Carlin's podcasts. I absolutely loved his World War I series called "Blueprint for Armageddon". Even though I listened to quite a few of them while they were free, I recently bought the whole back catalog from his website and have been working through them. Absolute gem and worth every penny. For anyone not familiar, he makes the most recent episodes "free" (he does ask for a standard donation of $1 per episode, but they are not paywalled) through the standard RSS feed, and monetizes by selling the older episodes through his website. Probably the best podcast series I've ever listened to. Recommend listening to the newer free episodes, and if you like it then go through the back catalog.
My wife and I had the serendipity of discovering Dan Carlin while we were backpacking through central Europe. Listening to Blueprint for Armageddon while on a train through the German/Austrian countryside was pretty surreal. We even realized in one episode that the street we were staying on in Munich (Hohenzollernstrasse) was named after a famous German involved in WWI.
I wonder how much money he actually makes, since most of his content is initially free for most listeners. I suppose it's for people who listen but don't keep up regularly or want to listen again who pay for his content.
Funnily that series is so good that it brought me into podcast ecosystem as a whole, but I still can't relisten to it. WW1 is just too bleak and hopeless to be "enjoyed".
