You need to get out of your podast rut. You know you're in one. We're all very good at forming habits, and podcast listening is no different. Podcasts are great because they inform and entertain me while I do other things. I no longer listen to the radio in my car, and instead listen to podcasts or audiobooks.
I stumbled across this nice list of popular "factual" podcasts. Having never heard of many of them, I fell down a rabbit hole exploring their offerings.