I don't know of any. I think you can listen to the TGFN and NoSolutions podcasts, the Bitcoin.Review and Citadel Dispatch episodes about Nostr, the Rabble, jb55 and Pablo talks in past conferences and invite these people to your podcast, that might be a good start. I guess some of the topics I mentioned above are only in mind so it's my job to talk about them (although I have written about them in Nostr notes and articles that were read by very few in the past), but most of the others you can get from these sources. Maybe read past notes and articles and follow @ hodlbod, @npub15qyd...yejr, @dluvian, @franzap, @npub1acg6...p35c, @verbiricha, @KoalaSat, @leo and others I'm forgetting. There is also a NIP-29 group for NIP-29 on the 0xchat relay that should have some discussion too, but not enough, it's somewhat dead.

RIP @The Nostr Report. There are some accounts attempting to replicate their work, like @Nostr Recap, but I'm not really satisfied with them. It's a big project.