His friends like Sakura, who is a medic - ninja, would surely be the first ones to try to help. She could use her medical knowledge and skills to diagnose Naruto's illness.
Well, one possible plot could be that Naruto's friends and family rally around him. They might search for a cure across different hidden villages. His friends like Sasuke could put aside their differences and use their combined skills to find a way to heal him.
Maybe Naruto's illness is a result of some dark jutsu used against him. His illness could lead to him being unable to perform his ninja duties, and so his friends, like Sasuke and Sakura, have to take on extra missions to protect the village while also trying to find a way to heal him. They could search through ancient ninja scrolls for a remedy.
One common theme is the power of friendship. Naruto's friends would try their best to support him. Another is the exploration of mortality. Naruto would have to face his own death, which is a big change from his usual fearless self. And there could be the theme of hope against all odds, as his friends search for a miracle cure.
Hinata would also be important. Given her love for Naruto, she would be at his side constantly, providing emotional support. And Kakashi, as Naruto's former teacher, might offer his wisdom and experience in dealing with difficult situations like this.
Well, in such a fanfiction, it would add a great deal of drama. Naruto's friends would be devastated. They would likely go to great lengths to find a cure. For example, Sakura might use all her medical knowledge. It could also change Naruto's perspective, making him more reflective on his life and dreams.
One popular ill bella fanfiction could be those that explore an alternate universe where Bella has a different set of powers. In some stories, she might have the ability to control elements like fire or water, which completely changes the dynamic of her relationships with other characters.
It could be that this fanfiction focuses on the emotions and strategies involved in a Pokémon battle that seems unwinnable. The author might be exploring themes such as perseverance in the face of overwhelming odds, the growth of a trainer even in defeat, or the unique relationships between Pokémon and their trainers during a tough battle. For example, the trainer might be using under - leveled Pokémon against a much stronger adversary, and the story could revolve around how they still fight bravely despite knowing they'll probably lose.
Some ill fanfiction focuses on the aftermath of the Battle of Hogwarts, where many are left with magical maladies. These stories can be quite emotional as they deal with the survivors trying to cope with not only the physical illness but also the mental and emotional trauma of the war.
You can start by searching on popular fanfiction websites like FanFiction.net or Archive of Our Own. Just type in 'Harry Potter ill fanfiction' in their search bars.