This opinion might be unpopular:
I generally try to avoid Christian podcasts unless they are from an older, experienced pastor, or somebody I truly trust.
Here are my reasons why:
(1) Older pastors have the most wisdom in many cases, but the younger ones are more tech-smart. Therefore, listening to the majority of reformed podcasts means that many young reformed believers are learning from the people who are the least equipped to teach.
Many of these young podcasters seem to be trying to make a name for themselves and engage in a fair amount of "branding" replete with logos and "merch" and t-shirts, etc. Others seem to specialize in calling out other podcasters, etc. Some try to be hip or funny and this almost always backfires.
For example, several podcasts for women or about marriage were started by young women or divorced people (or at least in one case I know, a mouthy divorced woman).
I suppose they could have really learned about marriage through having a bad one, I suppose, but I hardly think they'd qualify as experts to guide others...and yet, there they are...podcasting to thousands because they have the tech or the studio or the know-how technologically, even though an older woman or pastor has much more authority to teach others.
(2) Much like being caught up in the 24/7 news cycle, listening to Christian podcasts keeps us sucked into the hot-button issues of the day and takes us away from eternal truths sometimes.
We lose sight of the bigger picture because we are immersed in the here-and-now of today. For instance, during any given week on Facebook, at least half the people are chiming in pro or con regarding the "Rage Issue" of the week. Every week there is a new issue dividing people on Facebook.
For instance, this week it is about the silly actor that staged his own racial attack (using Nigerians...ha ha.....Nigerians being scammed by Americans...sort of ironic). If we are always attached to Facebook, then we can get enraged or stirred up about these fleeting news issues and lose the bigger picture and it eats away at our peace.
Podcasts can tend to do that as well. And many have an agenda, or are very polemical. I think generally we need a diet of less polemical material and more irenic presentations. We don't so much need to be prepared to debate people as we do need things that feed our souls or encourage right living, or encourages us.
For that reason, for example, I avoid James White's podcasts. Because he is a profesional debater, he addresses many things in a debate-mode, which is off-putting. Feeding on a daily diet of that material can make one's own attitude very polemical. He is technically good at what he does, and debate has its place, but the material is often against other Christians and often answers objections or criticisms and so there is a certain tone that gets communicated. If this is our daily diet then we begin to equate holiness with ability to argue (which it is not).
A sharp rhetorical pugilist is not necessarily the Christian role-models that we need to follow. Some of us are already too quick to fight or jab back. Of course, contending for the truth is needed. But....how do we contend without always being contentious all the time, that is the question. I don't mean to attack Dr White, he has a specific calling and a particular gifting. But that calling is only one aspect of the Christian life.
(3) Sound bite theology:
Sometimes issues have nuance. And podcasts and Facebook posts often go for the "rhetorical jugular" (the pithy one sentence put-down or response, often sarcastic) which often lacks nuance. This is essentially sound-bite theology, and is inferior to a fuller discussion which covers opposing views and the nuances of the issue.
My preferences:
Call me a heathen, but I don't like theological podcasts.
I prefer either well-produced theological works from yesterday, such as can be found at Audible.com (such as Augustine's conversion, the Bible read by a person with a good voice), or I prefer history podcasts, such as Dan Carlin's Hardcore History.
The problem is that many Christian books are narrated in audioform by a narrator who is dry and dull, or overly exuberant and sounds like a car salesman. Many Christian audiobooks suffer from poor production quality. I really think it would behoove us to hire professional narrators to put some of our best works and sermons into high-quality audio. Max MacLean reading Jonathan Edwards' sermon, Sinners in the Hands of An Angry God is a good example of a well-done work.
A favorite podcast for me and my son Noah has been the Trojan War podcast found here, which seems to be fairly faithful to the source-texts and traditions:
https://trojanwarpodcast.com/
And for audio, I would recommend Eugene Sledge's WWII pacific war diary, "With the Old Breed" found here:
https://www.audible.com/pd/With-the-Old-Breed-Audiobook/B00FOX9E2S
(https://www.puritanboard.com/threads/how-do-you-speak-about-animals.96871/)
