Maybe Bella is a reincarnation of an ancient figure related to Salazar. And Salazar has been searching for her through the ages. Their meeting could trigger a series of events to save the world from an ancient evil.
Yes, there are some out there. You can start by looking on popular fanfiction websites like Archive of Our Own or Fanfiction.net. Just search for 'bella swan and salazar the greek god' and you'll likely find a variety of stories with different takes on their relationship and adventures.
Bella Swan's character could be developed by having her explore different aspects of herself. In the context of Greek gods, she might discover a more passionate side of herself, like the passion associated with the Greek concept of eros. This could make her more confident and change her relationships. She could also be developed through her experiences with the Greek gods' powers. If she gets a taste of Athena's wisdom, she could use it to solve problems in Forks that she couldn't before. This would make her a more respected and important figure, not just among the Twilight characters but also among the Greek gods she encounters.
In this fanfiction, it could be that the god has been observing Bella Swan from afar. He decides to make himself known to her when she is in a moment of great danger. He saves her and from that moment on, they form a connection. As they become mates, they discover that their union has the power to bring balance to the supernatural world. However, there are forces that oppose their relationship, like other gods or powerful vampires who don't want the status quo to change.
One interesting story could be where Bella Swan discovers a hidden connection to Salazar's past. Maybe she stumbles upon an ancient magic that has ties to Salazar's lineage. Another could be a time - travel fanfiction where Bella is sent back in time and meets Salazar himself, and they have to navigate the complex wizarding world of his era together.
One common theme could be Bella's interaction with Greek gods in the Twilight universe. For example, she might encounter Apollo and be drawn to his radiance, which could create a love triangle situation with Edward. Another theme could be her gaining powers from the Greek gods, like the power of prophecy from the Oracle at Delphi. It could also involve her being a reincarnation of a figure from Greek mythology, which then ties her to the gods in a more fated way.
One common theme is the clash of two different worlds. The Twilight world of vampires and werewolves with the ancient and powerful world of Greek gods. Another theme is the power of love that transcends different mythologies. Love often overcomes the differences and challenges between Bella and her Greek god mate.
One possibility could be that Bella Swan is reimagined as Aphrodite. In this fanfiction, she might use her beauty and charm, much like the Greek goddess of love, to win over Edward in a more dramatic and myth - inspired way. For example, she could have powers related to love and attraction that add new twists to their relationship.
Maybe it's Loki. Loki is known for his mischief and cunning. His complex personality would add a lot of drama to the relationship with Bella. He could bring a whole new level of chaos to the Twilight universe.
Maybe Bella Swan discovers Cortez's work and it changes her perspective on something. For example, if Cortez is an artist, his art could inspire Bella in her own life in Forks.
Well, it could be that Bella is secretly an assassin all along in Forks. She's using her relationship with Edward as a cover while she's on a mission to take out some supernatural threats in the area.