One common theme is possessiveness. Since Naruto is in a yandere state, he is extremely possessive of Sakura. Another theme is the distortion of love. His love for Sakura is not the normal kind but rather a bit extreme and obsessive.
One great 'narusaku yandere naruto fanfiction' is 'The Yandere Naruto's Love'. In this story, Naruto's yandere traits are really interesting as he is overly possessive about Sakura. It shows a different side of his character and how his feelings for Sakura can turn extreme in a yandere way.
Naruto might be really confused at first. He's used to people being friendly or having normal crushes, but a yandere is a whole different level. He'd probably try to talk to her and understand why she's acting so strangely.
Yes, there probably is. In the Naruto fandom, there are various fanfiction themes, and the 'narusaku' (Naruto - Sakura relationship) with Naruto hating Sakura can be an exploration of an alternative take on their relationship. Some fans might write this to explore what - if scenarios or to express their own views on the characters' dynamics that deviate from the canon.
There is also 'Narusaku: The Next Chapter'. This fanfiction focuses on how Naruto and Sakura's relationship evolves further. It delves into their family life, with Sakura being a strong and loving mother, and Naruto being a doting father. The story also has some exciting plot twists involving old enemies resurfacing, but they face it all together as a couple.
In a fanfiction, Naruto could be training in a secluded area and Yandere Koneko stumbles upon him. She immediately falls for his spunk and the fact that he doesn't give up easily. Yandere Koneko then tries to insert herself into Naruto's life by bringing him food and small gifts. Naruto is initially confused but then realizes she has a rather extreme way of showing affection and has to gently set boundaries.
One idea could be that Naruto somehow gets trapped in a dimension where Kaguya has become a yandere for him. She tries to keep him there all to herself, while Naruto has to figure out a way to escape and also deal with her obsessive behavior.
Well, in some Narusaku fanfictions, Sakura might hurt Naruto emotionally by choosing Sasuke over him repeatedly. This can make Naruto feel rejected and unloved, causing him pain.
A third theme can be redemption. Maybe Naruto or Sakura had some regrets from their past actions or decisions. In these fanfictions, they could be on a journey to make up for those things while also falling in love. This adds depth to their characters and makes the story more engaging as they strive to be better people and partners.
One common theme is grief. Characters like Sakura, Sasuke, and the other villagers would experience intense grief over Naruto's death. Another theme could be legacy. People would start to think about the things Naruto left behind and how to continue his ideals.