A common theme is their partnership at work. Many fanfictions explore how they support each other during investigations. Another theme is their friendship evolving into something more. For instance, a story might show how they gradually realize their feelings for each other while dealing with a difficult criminal case.
The 'reunion kiss' is also quite common. For example, if they have been separated for some reason, like one of them going away for a while. When they see each other again, the passion and longing come out in a powerful kiss. Writers can really play with the emotions in this type of scenario.
You can try fanfiction websites like Archive of Our Own (AO3) or FanFiction.net. These platforms usually have a large collection of fanfictions for various shows and characters, so there's a good chance you'll find some about Jamie and Eddie's kiss there.
Another trope is the 'Kiss that Changes Everything'. In this case, the kiss between Jamie and Eddie is a turning point in their relationship. It could make them finally admit their love for each other, or it could create some sort of conflict if they're not ready for the implications of the kiss, like how it will affect their friendship or their professional lives.
Well, it could be that Sanfino has some sort of vendetta against Jamie and Eddie. Maybe he's a criminal they put away in the past and now he's out for revenge. He might kidnap them to use as bargaining chips against the police force or to make them suffer personally.
I've heard of a few jamie and eddie fanfictions on FanFiction.net as well. You can search for ones with high ratings and lots of reviews. For example, there might be a story where they go through a tough case together and it deepens their bond in an interesting way.
Fanfiction.net could also be a place to search. There are many different types of fanfictions there. However, the quality can vary. You'll need to dig a bit to find the really well - written Eddie and Jamie kiss fanfictions. Look for stories with high ratings and good reviews from other readers.
Their fellow police officers could save them. The police force might launch a massive search operation. They would use all their resources, like tracking devices if they had any on them before the kidnapping, and follow up on any leads they have about Sanfino's possible hideouts.
You can start by looking on fanfiction websites like Archive of Our Own (AO3). It has a large collection of fanfictions from various fandoms, including Blue Bloods. Just search for 'Jamie and Eddie' and you'll get a list of stories. Another option is Fanfiction.net, which also has a good number of Blue Bloods fanfictions about this pair.
A great Jamie and Eddie fanfiction often has well - developed characters. It should capture the essence of their personalities as seen in the show. For example, Jamie's sense of duty and Eddie's determination.