Love and sacrifice also play a big role. In these fanfics, just as in the books, characters are often willing to sacrifice for the ones they love. It could be giving up a normal life to be with a vampire or werewolf. And the love stories are often more complex and explored in greater depth.
One great 'Finding Heaven' Twilight fanfic is 'A New Dawn in Forks'. It explores the characters in a different light, adding new plot twists. The author does a wonderful job of maintaining the essence of the Twilight world while bringing in fresh ideas.
It's hard to say without reading it specifically, but it could be new characters created by the fanfic author. They might be ordinary humans who get involved with the Twilight characters. Or perhaps it's a different take on the main Twilight characters themselves, like Bella and Edward finding love in a more unexpected way than in the original story.
In general, the Twilight Princess manga is regarded as canon. It adheres closely to the key elements and plotlines set in the original franchise. Minor deviations might exist for artistic or narrative purposes, but the core remains consistent.
Well, perhaps there's a plot where a character who has been living on the outskirts of the Twilight world, like a nomadic vampire, stumbles upon love in a small town. They might meet a human with a special gift or a unique personality that draws them in. Or it could be that a character finds love during a time of great danger. For example, when the Volturi are threatening, two characters from different sides come together and realize their feelings for each other.