A theme about their friendship and how it endures over time. They could face various challenges in the Hidden Leaf Village, and their bond could be the key to overcoming those difficulties. For example, they might have to work together to protect a precious artifact of the village.
Another great theme is their growth as individuals within the context of their relationship. Sakura could be depicted achieving her dreams of becoming a top - notch medical ninja, and Naruto could be on his journey to be the best Hokage, and they both support and inspire each other along the way.
Another theme could be a time - travel fanfic where Naruto and Sakura go back in time. They use their knowledge of the future to change some events for the better. This allows for a lot of character development as they see their past selves and try to guide them. It also gives an opportunity to explore their relationship in a new and interesting way.
A great theme would be their friendship development. Maybe a story about how they become closer friends after a difficult mission where they had to rely on each other. They could share their dreams and fears during that time, strengthening their bond as comrades.
One positive theme could be their journey of rebuilding the Hidden Leaf Village together. They could be shown working side by side, using their respective skills to make the village better, stronger and more prosperous.
A great theme would be about friendship. For example, Sasuke and Sakura could be on a mission together and have to rely on their friendship and trust to get through difficult situations, like facing a powerful enemy or solving a complex mystery.
One positive idea could be a fanfic about Naruto and Sakura teaming up to train a new generation of ninjas. They could pass on their skills and wisdom, showing how they've grown as characters since their own days as students. This would focus on their friendship and their roles as mentors, which is in line with the positive themes of the original series.
You can write about their friendship development. For example, how they support each other during difficult missions. Naruto's positive energy could inspire Sakura to be more confident in her medical ninjutsu skills, and Sakura could be the one to patch Naruto up when he gets injured in battles.
Friendship is also a great theme. Fanfics can center around the strong bonds between Naruto and his friends like Sasuke and Sakura. They could show how their friendships endure through difficult times and how they support each other in their respective quests.
Well, a great positive theme is redemption. There are characters in Naruto who have made mistakes and then seek to make amends. Fanfic can expand on these redemption arcs, showing the journey of a character from a wrongdoer to someone who is trying to do good. Also, the theme of family, whether it's the found family aspect like Team 7 or the idea of Naruto's search for his own family roots, can be beautifully explored in fanfic.
Positive fanfic themes might include the backstories of minor characters. For instance, delving into the past of Rock Lee and how his determination to become a great ninja despite not having natural ninja abilities. Or it could be about the rebuilding of the Hidden Leaf Village after the various battles and how different characters contribute to this process.
Teamwork is also a great theme. A fanfic might depict how Team 7 (Naruto, Sasuke, and Sakura) work together to overcome a powerful enemy that they couldn't defeat alone. Additionally, exploring the backstories of minor characters in a positive light can be interesting, such as a fanfic about how Iruka Sensei became a teacher and his influence on Naruto's early days.