In this fanfic, it could be that Naruto is betrayed by someone within the village. They attack him and he is left bleeding out in an alley. Hinata discovers him and tries to heal him using her gentle fist techniques, but she has to face the attackers again while protecting the bleeding Naruto. This would create a tense and emotional situation in the story.
It could be Orochimaru. He has always been interested in Naruto's power. He might set up a trap where Naruto gets severely injured and is bleeding out. Orochimaru could be planning to take Naruto's body or steal his chakra while he is weak.
Perhaps in the 'naruto dies narusaku fanfic', Naruto sacrifices himself to save Sakura from a powerful enemy. Sakura, in her despair, starts to discover new aspects of Naruto she never fully realized when he was alive. She could then start a journey to find a way to bring him back, encountering many challenges along the way and meeting old friends and foes who either help or hinder her.
Perhaps in the fanfic, Sonya Blade is on a mission to find a missing comrade who has somehow ended up in the Naruto world. She teams up with Naruto and his friends to search for this person. Along the way, they learn about each other's worlds, and Sonya Blade teaches them some self - defense techniques from her world, while Naruto shows her the power of ninjutsu and the importance of teamwork in the ninja way.
One possible plot is that Naruto discovers a mysterious Christmas spirit in the forest. This spirit has the power to grant wishes but is in danger of being captured by an evil force. Naruto decides to protect the spirit and in the process, he learns more about the significance of Christmas in the ninja world.
It might also be a story where the wilting flowers are a result of some dark magic or a curse in the Naruto world. Naruto has to go on a quest to find the source of this curse and break it to save the flowers. He could meet new characters or face new enemies during this quest.
One possible plot could be Naruto losing his arm during a battle with a powerful new enemy. He then has to struggle with not only the physical loss but also the emotional and mental toll it takes on him as a ninja. He might have to learn new fighting techniques that don't rely on two arms.
In this type of fanfic, it could be that Naruto's sister is ill or has some special condition that requires a lot of care from their parents. So, Naruto is pushed to the side. However, Naruto being Naruto, he still tries to find his own way in the ninja world. He might find a mentor outside of his family who sees his potential and helps him grow. Eventually, he could come to terms with his family's situation, or they could realize that they've been neglecting him and try to make amends.
One possible plot could be that Naruto is experimented on by a rogue ninja group using forbidden jutsu, which turns him into a monster. As a monster, he struggles to control his new powers and is shunned by the village at first. But then he uses his new form to protect the village from a greater threat.
It could be that the whole Team 7 is brainwashed by an evil ninja with powerful genjutsu abilities. They are made to believe that Naruto is the key to a great evil that will destroy the ninja world. As a result, they turn on Naruto, and he has to fight not only his former teammates but also the false accusations and the real threat behind the brainwashing.
One possible plot could be that Naruto is captured by a powerful and sadistic enemy. This enemy might use various forms of torture to try and break Naruto's spirit, perhaps to extract information about Konoha. Another plot could involve Naruto being tortured as a result of a false accusation within his own village, and he has to endure years of this while trying to prove his innocence.