The idea of an alternate universe is also very common. Since Zamasu is from a different franchise, fanfictions like to create a new world where both Naruto and Zamasu co - exist. This allows for new character relationships to be formed, new storylines to be developed, and for the writers to be really creative with the setting and the overall plot.
One common theme is the clash of ideologies. Naruto has his values of friendship and protecting the village, while Zamasu has his own extreme views. So, this often leads to interesting conflicts in the fanfics.
One common theme is the clash of ideologies. Naruto, with his belief in friendship and hard work, often clashes with Fem Zamasu's more extreme views. Another theme is the exploration of power. How their combined or individual powers affect the fictional world they are in. For example, if they fight together, how do they take on stronger enemies? Or if they oppose each other, who is more powerful in different situations.
One great Naruto Zamasu fanfiction is 'The Zamasu Ascension'. It delves into an alternate universe where Zamasu's power and influence over the Naruto world are explored in a really unique way. The story has great character development and the plot keeps you on your toes.
One popular 'naruto zamasu fanfic' might be 'The Unlikely Alliance'. It's about Naruto and Zamasu having to work together to face a new, powerful enemy that threatens both their worlds. It has some really interesting character interactions.
I'm not sure of the exact name, but there are fanfictions where Fem Zamasu teams up with Naruto. This is an interesting concept as they are from very different fictional backgrounds. Their teamwork could be a focus, like how they combine their powers. Naruto's Rasengan combined with Fem Zamasu's unique abilities could create a whole new kind of attack. It also delves into how two characters with different moral compasses can work together towards a common goal.
One idea could be a crossover with the Dragon Ball Super universe and the DC Comics universe. Zamasu could team up with Darkseid, believing they share a similar view of bringing 'order' to their respective realms. Another idea is a crossover with the Naruto universe, where Zamasu tries to impose his will on the ninja world, facing off against powerful shinobi like Naruto and Sasuke. Or perhaps a crossover with the Star Wars universe, with Zamasu as a Sith - like figure, trying to gain control over the Force.
One interesting Zamasu fanfic could be about his origin story in more detail. It might explore his early days in the Kaioshin realm, his training, and how his ideology started to form.
Zamasu meets his end in the manga because he underestimates the strength and strategy of Goku and Vegeta. They exploit his weaknesses and deliver the final blow that finishes him off.