There are so many good podcasts for this. Top of my list are Empire, Fall of Civilizations, The Age of Napoleon, The Rest is History, Saga Thing.

Dan Carlin's Hardcore History, Revolutions + History of Rome, Land of Desire (a remarkably talented hobbyist show on French history), Patrick Wyman's Tides of History which is wrapping up soon after about a billion episodes, American History Tellers, History of India... there's a show for everything, but I think you have to try a few to get a feel for how granular you like and what sort of style calls to you.

And I find podcasts gradually lead me towards books. It's just harder to read a book while walking my dog.

I really enjoy Age of Napoleon as well, it’s my only Patreon sub at the moment.