The thing about JRE is that it's long form, if the topic or guest is interesting to you, you'll probably learn a lot and enjoy it. If not, just skip it, there's plenty more out there.
Joe calls himself a dummy all the time, but he has a wide range of interests and let's his guests be the expert.
If you need inspiration listen to David Goggins episode. David Lee Roth was also surprisingly interesting, he is arrogant but has not lived the typical rock star life (studied sword fighting in Japan, worked as an EMT for 4 years in NYC all after leaving Van Halen).