A common theme is time - travel. For instance, Sakura might travel back in time and meet a younger Itachi and Shisui. This allows for interesting plot developments as she tries to change the future or just understand their past better. Also, the theme of redemption can be found. Maybe Itachi or Shisui have made some mistakes in their past and Sakura helps them find redemption through their interactions with her.
Friendship is a common theme. They often start as comrades and develop deeper bonds. Another theme is sacrifice. Given Itachi's character in the original Naruto series, his self - sacrificing nature might be incorporated into these fanfictions. And of course, love in a non - traditional sense, as the relationships between the three can be complex and not just pure romantic love.
Another theme is sacrifice. Given their fates in the original Naruto story, fanfictions often play with the idea of how much they were willing to sacrifice for their village, their clan, and for each other. For example, Shisui's sacrifice and how it affected Itachi.
One possible fanfiction could be about Sakura joining an Anbu team that has Itachi and Shisui. Maybe Sakura is a new recruit and she has to learn from the two experienced shinobi. Itachi could be the calm and collected leader, while Shisui is the more easy - going one who helps Sakura adjust to the harsh Anbu lifestyle.
There are quite a few good writers out there. One way to find them is to search for fanfiction communities dedicated to Naruto (since these characters are from Naruto). In these communities, people often recommend their favorite writers. Some writers are known for their in - depth characterizations of Itachi, Sakura and Shisui. They make the characters feel real and add new dimensions to their relationships. You might also want to follow some fanfiction blogs on Tumblr that often share and promote great fanfictions about these characters.
Sakura's amusement could actually make Shisui more likely to continue annoying Itachi. Since she finds it funny, Shisui might see it as a sign that his actions are acceptable and entertaining. This could potentially strain the relationship between Shisui and Itachi further if Itachi doesn't like being the target of Shisui's annoyance.
Another theme is sacrifice. Given their fates in the original story, fanfictions often play around with the idea of how much they are willing to sacrifice for each other and for the greater good. It could be sacrificing their own lives or their own happiness for the other.
Well, I know that many fanfiction stories often explore unique relationships between these characters. For example, there could be a story where Sakura has to team up with Itachi and Shisui to face a powerful enemy. In these fanfictions, the authors might give Sakura new powers or abilities to make the story more interesting. Another common theme could be a love triangle between the three, which can lead to some really intense and emotional storylines.
One idea could be a story where Sakura, as a skilled medic, is tasked with treating Itachi and Shisui during a difficult mission. She discovers their complex pasts and bonds with them over time, leading to new alliances and friendships.
They could give her combat training. Teach her how to use her chakra more effectively in battle and show her some new ninjutsu.
In this fanfiction, a possible plot highlight could be a training tournament among Sakura, Shisui, and Itachi. This would allow Sakura to test her skills against two of the most powerful shinobi. Itachi's sharingan and Shisui's body - flicker technique would pose great challenges for Sakura. However, through her own strength and the knowledge she has gained from Tsunade, she could hold her own. This kind of competition would also strengthen their bonds as they respect each other's abilities more after seeing them in action.