Gothic demons as protagonists? Now that's a deliciously dark niche! Let me gush about some favorites that dive deep into the infernal psyche. Clive Barker's 'The Hellbound Heart' (the novella that inspired 'Hellraiser') gives us Pinhead and the Cenobites—not traditional demons, but close enough with their obsession with pain and pleasure. They're more like twisted angels of suffering, but their gothic vibes are undeniable. Then there's Anne Rice's 'Memnoch the Devil', where Lestat literally meets the Devil himself, and Memnoch's tragic, philosophical take on damnation is pure gothic grandeur—biblical angst, velvet robes, and all.
For something more recent, Silvia Moreno-Garcia's 'Mexican Gothic' doesn't have a demon protagonist per se, but the fungal horror lurking in the house feels demonic in the most gothic way possible—ancient, possessive, and dripping with decay. And how could I forget 'Between Two Fires' by Christopher Buehlman? Set during the Black Death, it features a disgraced knight traveling with a girl who might be a saint... or something far darker. The demons here are biblical horrors straight from a medieval nightmare, and their chapters ooze gothic dread. Honestly, I live for these kinds of stories where the monsters get the spotlight—they make hell feel weirdly inviting.