@peterdrake My current favorite is probably the @seanmcarroll podcast Mindscape. He's a theoretical physicist who does interdisciplinary work in philosophy, so those topics feature frequently, but there's also an eclectic mix of other topics that interest him.

I suppose it is sometimes two white men having unscripted opinions, but it's generally directed at specific topics in which at least one of them is an expert, and a fair number of his guests are not white men.