Black magic woman

Harry Dresden is the quintessential supernatural private investigator, navigating a gritty Chicago filled with magic, vampires, and fae. Fans of Gustainis's blend of detective work and occult threats will find a familiar, fast-paced, and morally complex world with a protagonist who often bends the rules.

Felix Castor is an exorcist and supernatural investigator who reluctantly deals with ghosts, demons, and occult conspiracies in a dark, cynical London. This series shares Gustainis's gritty tone, complex moral dilemmas, and the constant threat of supernatural forces from an outsider's perspective.

James Stark, an anti-hero escaped from Hell, seeks revenge in a dark, violent Los Angeles underworld teeming with angels, demons, and ancient magic. Readers who enjoy Gustainis's darker, more action-packed urban fantasy with a morally grey protagonist will appreciate Stark's brutal journey.

John Taylor is a private investigator operating in the Nightside, a hidden, magical, and perpetually dark part of London where all myths are real. This noir-infused series offers a compelling mix of detective work, occult mysteries, and a unique, atmospheric setting similar to Gustainis's urban fantasy.

Peter Grant is a probationary constable who becomes an apprentice wizard, investigating supernatural crimes in a magical version of London. While often lighter in tone than Gustainis, it shares the blend of police procedural, urban fantasy, and a rich, hidden magical world with deep lore.

Alex Verus is a diviner and magic user living in London, trying to stay out of the dangerous politics of the magical world, but constantly drawn into investigations and conflicts. This series offers fast-paced action, moral ambiguity, and a protagonist who uses his wits as much as his magic, appealing to fans of Gustainis.

Kate Daniels is a mercenary in a post-magic apocalypse Atlanta, where technology and magic ebb and flow, fighting monsters and solving supernatural mysteries. This series delivers a strong female lead, gritty action, and a compelling blend of urban fantasy in a dangerous, evolving world.

Repairman Jack is a 'fixer' who operates outside the law, dealing with problems that often involve supernatural entities, ancient conspiracies, and dark forces. This series provides a similar vibe of a pragmatic protagonist confronting occult threats in a contemporary, gritty setting.

Mercy Thompson is a coyote shapeshifter who navigates the complex politics and dangers of vampires, werewolves, and fae in the Tri-Cities area of Washington state. While featuring shapeshifters, it shares the urban fantasy setting, strong protagonist, and blend of action with supernatural intrigue.

Johannes Cabal is a necromancer who sold his soul for knowledge and now seeks to reclaim it, embarking on a darkly humorous and often disturbing journey through infernal bureaucracy and occult dealings. While more satirical, it shares Gustainis's focus on dark magic, moral ambiguity, and supernatural consequences.