I'm not sure about specific fanfictions where Regina kills Pan. But you can try searching on popular fanfiction websites like Archive of Our Own. Just type in the relevant keywords and browse through the results. There might be some really interesting takes on this plot point in the fanfiction community.
One possible motivation could be revenge. Pan had caused a lot of trouble in the Once Upon a Time universe. He was manipulative and had endangered many characters. Regina, who had her own history of being wronged, might have seen killing Pan as a way to protect herself and those she cared about.
You can try fanfiction websites like Archive of Our Own (AO3). It has a vast collection of 'Once upon a Time' Regina fanfictions. Just use the search bar and type in relevant keywords like 'Regina' and 'Once upon a Time' to find stories that might interest you.
You can try fanfiction websites like Archive of Our Own (AO3). There are a lot of writers who create fanfictions about Regina's childhood in 'Once Upon a Time'. Just search for 'Once Upon a Time Regina child' and you'll get a list of relevant stories. Some of them are really well - written and explore different aspects of her childhood, like her relationship with her mother or her early experiences in the Enchanted Forest.
Some Tumblr blogs are dedicated to collecting and promoting Once upon a time fanfictions. You can search for tags related to Regina and Emma in the Once upon a time fandom on Tumblr. These blogs usually curate a selection of stories that they think are worth reading, which can save you some time in sifting through a large number of fanfictions.
You can start by looking on fanfiction websites like Archive of Our Own (AO3). It has a large collection of 'Once Upon a Time' fanfictions, specifically those about Regina and Zelena. There are filters you can use to sort by popularity, rating, etc.
Fanfiction.net is also a great place to look. It has been around for a long time and has a large community of writers. When you search for Regina and Snow White fanfictions from 'Once upon a time', make sure to read the summaries and reviews to find ones that might interest you. Some might be about their friendship, while others could explore a more complex relationship between the two characters.
Fanfiction.net is also a good place. It has been around for a long time and has a large community of 'Once Upon a Time' fans. However, the interface might not be as user - friendly as AO3, but you can still find some great Emma and Regina fanfictions by using the search function and filtering for the relevant tags.
Redemption is a very popular theme. Given Regina's complex character arc in the show, many fanfictions explore her journey towards redemption, how she tries to make up for her past wrongs and find a place in the world where she can be accepted and at peace.
In some fanfictions, Emma and Regina could develop a romantic relationship. Their complex history would add depth to such a story. They might have moments of jealousy when other characters show interest in one of them, and then have to confront their true feelings for each other.
To write a good 'Peter Pan Once Upon a Time' fanfiction, focus on the relationships. The relationship between Peter Pan and Hook is full of tension and history. Explore that further in your story. You can also introduce new characters that interact with the existing ones in interesting ways. And don't forget about the magic. Make the magic in Neverland feel real and exciting. You can create new spells or magical creatures that fit within the Once Upon a Time universe.