Multi-character shows created by a single person, though you probably wouldn't guess just by listening.

Stories that feature walking, talking, and otherwise civilized animals.

Stories told via a series of letters, now in audio form.

Audiobooks and other mostly-narrated stories, often with audio elements that enhance the story.

Political thrillers, epic sagas, and other tales of political intrigue.

High, low, and all fantastical points inbetween.

Radio plays and audio dramas done in the style of radio performances, often with a modern twist.

Stories with one or more characters dealing with mental health issues.

Stories where some sort of recorder—tape, digital, wax cylinder—is the primary vehicle that tells the story.

Queer-forward stories of any genre, really.