I have no idea if you follow the Pathfinder franchise but just warning you that Pathfinder audio dramas are not consistent with the Pathfinder comic books. I was listening to one and wondering why Kyra and Valeros acted like they never met before when they first meet in the first volume of the comic (other details make it clear that the audio CAN'T take place before the comic either) and asked around on the Paizo forums and was told that the comics and audio dramas aren't consistent (it's unclear which continuity the novels follow as Merisiel's first meeting with Kyra as described in 'Before the Godsrain' isn't consistent with the comics admittedly I haven't found anything in the prose books that contradict the audios yet)I do too. I stumbled upon a whole YouTube playlist of audio dramas, specifically detective stories. Plus, there are still radio stations I hear with it.
A niche, perhaps, but definitely an enjoyable one.