Perhaps she could be a key figure in a cross - agency operation. Since she has grown up around the NCIS environment, she might have unique insights that help bridge the gap between different agencies. It could also be a story about her personal life, like her relationships outside of the NCIS world, and how that affects her view of her father's work.
One possible storyline could be her following in her father's footsteps in the world of NCIS. She might start as an intern or a new recruit, facing challenges and making friends along the way. Another could be a story where she gets involved in a mystery that is somehow related to her father's past cases, using her own skills and knowledge to solve it.
In fanfic, she could also be a bit of a rebel. Tired of living in her father's shadow, she might try to carve out her own identity in the NCIS world. This could lead to some interesting conflicts, both with her father and with the other characters in the story.
One possible plotline could be that O'Neill's sister gets involved in a case that Granger's daughter is also working on. Maybe they start off on the wrong foot but then gradually learn to work together and in the process, O'Neill has to play mediator between them.
Think about the plot. Why is he looking for someone? Is it a missing agent? A personal acquaintance? Build a strong backstory to support the search. Also, consider the setting in NCIS LA. Incorporate the locations and the overall atmosphere of the show into your writing. For example, if there are certain procedures or technology used in the show, mention them appropriately in your fanfic.
The plot could be that Hetty's sister, an original character (oc), comes to work with the NCIS LA team temporarily. She has a unique skill set, like being an expert in a particular type of forensics that the team lacks. However, her presence also stirs up some old rivalries within the agency because of her connection to Hetty.
Well, it might be that the OC has a personal connection to an ongoing case. Hetty, being the shrewd character she is, hires the OC to use that connection to the team's advantage. Perhaps the OC has a past with a criminal organization that the NCIS LA team is currently investigating, and their inside knowledge could be crucial.
Fanfiction.net is also a great place to look. Many fans post their works there. Navigate to the NCIS LA section and then use the search function within that section for 'Granger looking for someone'. You might have to sift through some results, but it could be worth it.
A fanfic that stands out is 'OC's Impact on Callen'. This one focuses on how the OC changes Callen's perspective and his way of handling cases. The OC is portrayed as a strong - willed and intelligent character, and the way they interact with Callen is both engaging and believable. It also has some great action scenes that are typical of the NCIS LA style.
One great NCIS LA Hetty Daughter OC fanfic is 'The Hidden Legacy'. It delves deep into the character of Hetty's daughter as an original character. The story is filled with intrigue as she gets involved in the NCIS LA operations in a unique way. It has great character development and a plot that keeps you hooked from start to finish.
The main thing is the exploration of new relationships. Since the daughter is an OC, the writer can create unique dynamics between her and the existing characters. For example, her relationship with Hetty can be explored in ways not shown in the original show. It could be a strained relationship or a very close - knit one depending on the writer's take.
A good NCIS LA Max Gentry OC fanfic should have a well - developed OC. The character should have unique traits, goals, and a backstory that makes them fit into the NCIS LA universe. For example, if the OC is a hacker, there should be a reason for their skills.