Naruto is likely still very popular. After all, he's the main character of the original series and fans often enjoy seeing new adventures for him in fanfiction.
One of the popular ones is often a primordial being associated with nature. They are usually depicted as having the ability to communicate with all living things in the Naruto world, from the tiniest insects to the mightiest beasts. Their powers are often related to enhancing the natural growth and abilities of living organisms.
The Primordial King, of course. Since he is the center of this type of fanfiction, different interpretations of his character are always interesting. Some might write him as a menacing villain, while others might give him a more complex and sympathetic backstory, making him a character that readers are eager to explore more about.
Obviously Naruto would be one of the main characters since it's a Naruto - based fanfiction. There might also be other characters like Sasuke, who could be involved in Naruto's journey related to the primordial of death. And perhaps some original characters created specifically for this fanfiction to further the plot regarding the death - related concept.
Naruto is often very popular. His outgoing personality and determination make him a natural fit for the rockstar world. Fans love to imagine him on stage, rocking out and inspiring the crowd.
Kakuzu is another character that can be popular in these fanfictions. His unique ability to have multiple hearts and his money - loving nature can add a touch of humor or be explored in more serious ways in relation to the Akatsuki's goals and activities.
Naruto himself is often a popular character in such fanfictions. His popularity in the original series makes him a natural focus for new and cybernetic - themed storylines. Sasuke is also quite popular as fans like to explore how his Sharingan could be enhanced with cybernetic elements.
Naruto himself is often a central and very popular character in these fanfictions. Since it's about his rebirth, readers are interested in seeing how his character evolves differently.
In Naruto fanfiction, Sasuke is often very popular. His cool and brooding nature makes for interesting storylines. Naruto himself is also a common focus. In Megaman fanfiction, Megaman and Proto Man are popular. Their heroic personas and their relationship as brothers or comrades are often explored in different ways.
Twilight Sparkle from My Little Pony is also quite popular in these crossovers. Her intelligence and powerful magic make her a great counterpart to Naruto. She can have really interesting interactions with Naruto, whether it's about sharing knowledge or working together in battles.
In 'alchemist naruto fanfiction', Naruto is surely one of the most popular characters. He could be the one to bridge the gap between the ninja world and the world of alchemy. Sakura is also a likely popular character. Her intelligence and medical skills could be developed further in a story with alchemical elements, like using alchemical knowledge to improve her medical ninjutsu. Another popular character could be Itachi. His complex backstory and powerful abilities could be intertwined with alchemist concepts in really interesting ways.