Wow, this question just unlocked a core memory. I practically lived in the paranormal romance section of Audible during my long commute phase. The one that absolutely dominates in listener ratings—and deservedly so—is Ilona Andrews' 'Kate Daniels' series. The ratings aren't just high, they're consistently high across all ten books, which is rare. Narrator Renée Raudman is Kate Daniels for a lot of us; her delivery of that sarcastic, world-weary yet principled voice is perfection. It’s not just fluffy romance, the world-building around a magic-apocalypse Atlanta is intricate, and the slow-burn with Curran is legendary. You’ll see it recommended in every single thread for a reason.
A close second, and a more recent obsession for many, is the 'Fever' series by Karen Marie Moning, narrated by Phil Gigante and Natalie Ross. The ratings skyrocket after the first book as the story deepens. It’s darker, grittier, and the narration for Jericho Barrons is... an experience. The character development of MacKayla Lane from a somewhat frivolous southern belle into a total badass is a journey listeners get deeply invested in. The audio production quality and dual narration for the later books really elevate it above the text for me.
Honorable mention to Nalini Singh’s 'Guild Hunter' and 'Psy-Changeling' series, which also have fiercely loyal listener bases and top marks, though the fantasy elements sometimes edge out the pure paranormal romance label. For pure PNR escape with top ratings, start with Kate Daniels. It’s the community gold standard.