There are quite a few out there. Some focus on Will's jealousy over Nico's past relationships or his close friendships. The best way to find them is to search on fanfiction platforms using keywords like 'Solangelo', 'Will jealous'. You might also want to check out some of the Solangelo - centric blogs or forums where fans often share and discuss their favorite fictions that deal with this particular theme.
I remember reading a piece where Will gets jealous when Nico spends a lot of time with another camper. In that fanfiction, the author beautifully portrays Will's internal struggle. He tries to hide his jealousy at first but then it all comes out in a very emotional confrontation. It shows the complexity of their relationship and how jealousy can be a part of it, even in a fictional world like the one in Percy Jackson.
One great Solangelo fanfiction where Will is jealous can be found on Archive of Our Own. It's titled 'Green - eyed Jealousy'. It really delves into Will's insecurities and how he copes with his jealousy in the relationship, all while maintaining the essence of the Solangelo dynamic.
I really like the fanfiction titled 'Sakura's Jealous Rage'. It delves deep into how Sakura's jealousy affects her relationship with Naruto and their friends. She starts to act out in small ways, like being overly critical of Naruto's decisions. It also explores how Naruto is oblivious to her jealousy at first, which adds an interesting dynamic to the story. There's also a story where Sakura's jealousy is intertwined with her insecurities about her own ninja skills compared to Naruto's rapid progress.
One great fanfic could be 'Jealousy in Hogwarts Halls'. In it, Harry's jealousy of Percy might stem from Percy's academic achievements and the way he's always so well - regarded by the teachers. It shows how Harry, who already has so much on his plate, struggles with this new emotion. It's a really interesting take on the characters and their relationships within Hogwarts.
There's a fanfic called 'Dean's Envy'. It delves deep into Dean's character and his jealousy towards Harry and Ginny's relationship. The author does a great job of showing how Dean's jealousy affects his friendships and his own self - worth. He starts to isolate himself as he can't bear to see them happy together.
Often, the plot involves Will misinterpreting Nico's actions or words as signs that he might be losing him. For example, if Nico is being secretive about something, Will might assume the worst and his jealousy flares up. This then leads to some sort of conflict between them that they have to work through, usually with a lot of emotional conversations and realizations about their relationship.
I recall a fanfic called 'Jealousy's Grip'. In this story, Star's jealousy is triggered by a misunderstanding. The story takes an exciting turn as Star tries to figure out the truth while dealing with her emotions. It's a short but intense read that captures the essence of the 'jealous' theme really well.
In some fanfictions, Sakura becomes very successful in her medical ninja skills and many guys start to admire her. One of them is very bold and openly courts her. Sasuke, who has always taken Sakura for granted, suddenly feels jealous. He then has to figure out his true feelings for Sakura and how to deal with this new - found jealousy.
One great fanfiction with a jealous Adrien is 'The Green-Eyed Cat'. It really delves into Adrien's feelings of jealousy in a way that stays true to his character. The author does an amazing job of showing how his insecurities surface when he sees Ladybug interacting with other heroes.
In the fanfiction, Fem Kyuubi could be jealous of Naruto's relationships. Naruto has strong bonds with his friends like Sasuke and Sakura. Kyuubi, being trapped inside Naruto for so long, might envy those connections. She could try to interfere in Naruto's friendships by whispering negative thoughts in his mind during their interactions, hoping to drive a wedge between them.
One possible scenario in this fanfiction could be that Sakura realizes her long - hidden feelings for Naruto when she sees Hinata getting closer to him. She might start to act out in small ways, like being a bit more snippy with Hinata during team meetings or training sessions. However, she also has to deal with her own sense of pride and the fact that she once rejected Naruto.
One great 'Being Human Bishop fanfiction' could be one where Bishop, as a human, has to face the same moral dilemmas as he did as a vampire but without the supernatural advantages. He might struggle with his past actions and try to make amends in the human world.