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.
The fact that they come from different fictional universes adds a lot of intrigue. Naruko from her anime - inspired world and John Constantine from the darker, more occult - based DC universe. When combined in fanfiction, it allows for creative crossovers. For example, how would Naruko's positive attitude affect Constantine's rather jaded view of the world? And how would Constantine's magic knowledge influence Naruko? There are so many possibilities for character development and exciting storylines.
The 'Hellblazer' series has many great Constantine stories. For example, 'The Family Man'. This one delves into Constantine's past and how his family history and his own actions have consequences. It's full of dark magic, moral dilemmas, and Constantine's signature cynical humor.
John Constantine in DC Comics is a master of magic and trickery. He's constantly dealing with demons and other supernatural threats. His character is a blend of bravery and cunning, making him a fan favorite.
Some dedicated DC Comics fanfiction communities or forums might also be a good source. Members often share their own works or recommend good fanfictions. You can try searching for DC Comics - related forums and asking around for any King Shark x John Constantine fanfictions.
One good 'King Shark x John Constantine fanfiction' could be 'The Unlikely Bond'. It explores how their contrasting personalities, King Shark's brute strength and Constantine's wily magic, come together in a story of mutual understanding. They might start as reluctant allies against a common supernatural threat in the seedy underbelly of their world, gradually growing to respect and rely on each other more than they expected.
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.