There's a fanfiction where John Constantine crosses over with the Supernatural universe. It's really cool because it combines the dark magic and demon - hunting aspects of both worlds. Constantine's knowledge of the occult clashes and also meshes with the Winchesters' way of dealing with the supernatural, leading to some intense and exciting storylines.
The popularity of 'John Constantine Crossover Fanfiction' lies in the character himself. Constantine is a complex and morally ambiguous character. When he crosses over into other universes, it creates a lot of interesting scenarios. For example, in crossovers with superhero universes, his magic - based solutions contrast with the more traditional superpowers of heroes.
One great 'John Constantine Supernatural Fanfiction' is 'Constantine's Cursed Case'. It has a really engaging plot where Constantine teams up with the Winchester brothers in a way that feels true to the characters. The author does a wonderful job of capturing Constantine's snarky attitude and his unique brand of magic.
In the comics, John Constantine's sexuality is indeed shown to be bisexual. This aspect adds depth to his character and is part of his complex personality.
One great 'John Constantine x Reader Fanfiction' is 'Constantine's Salvation'. It has a really engaging plot where the reader character gets drawn into Constantine's dark world of magic and demons. The chemistry between them is well - written and makes for an exciting read.
One great fem Harry x John Constantine fanfiction is 'The Enchanted Encounter'. It has a really interesting plot where fem Harry and Constantine team up to fight a powerful dark magic entity. The author does a wonderful job of developing their relationship throughout the story.
Some smaller, more specialized fanfiction communities or forums dedicated to DC Comics characters might also have great John Constantine x Zatanna fanfictions. You could try joining these communities and asking for recommendations from other fans who are into these characters.
One possible plotline could be that Naruto is somehow transported to Constantine's world. He has to quickly learn about the magic and the dark forces there. Using his ninja skills and determination, he teams up with Constantine to fight a powerful demon that is threatening both worlds. Another could be that Constantine visits Naruto's world and finds that the chakra system is a form of magic he can tap into. Together, they use this new knowledge to fight off an ancient evil that has been awakened in Naruto's world.
One great 'Danny Phantom' and 'John Constantine' fanfiction is 'The Ghostly Exorcist'. It combines the spooky elements of Danny's ghost world with Constantine's dark magic. The story has an interesting plot where they team up to fight a powerful entity that is causing chaos in both the human and ghost realms. The character interactions are well - written, making it a must - read for fans of both series.