Here are some of my favorite podcasts. Some are planner related, some not.
The Uncurated Life Podcast
Podcast from Cindy Guentert-Baldo. Need I say more?
RadioLab
Basically the best thing I've ever listened to. If you need to make a drive pass quickly, this is how you do it. Warning: It will make you think.
Confessions of a Girlboss
I listen to this because I like to hear other shop bosses talk about being a shop boss. However, there can be an excessive amount of giggling.