Oops, I forgot to ask where are you based? We are in the UK and I though it may be relevant to your non-native comment. We definitely want something which is universally appealing and understood.
The problem with using the term "spoken word" to describe what you are offering is that it already has a separate meaning. Spoken word is a particular type of performance art. See Wikipedia. Honestly, the best thing may be to just list the type of content you are offering: "... who enjoy hand-picked audio documentaries, interviews, discussions, stories and more." I'm not sure there is a good term for the collection of those things.