In this fanfiction, Naruto could be a ringmaster in a magical circus. He discovers that some of the performers have secrets that are linked to the darker parts of the Naruto world. As he tries to uncover these secrets, he also has to keep the circus running smoothly. He might use his charm and leadership skills, similar to when he led his ninja teams, to keep everyone in line and the audience entertained.
Obviously Naruto would be a main character as it's a Naruto - centered fanfiction. He could be the ringmaster, bringing his energy and leadership skills. Sasuke could also be a major character, perhaps starting as a rival ringmaster or a reluctant performer who eventually comes to embrace the circus life. Sakura might be there too, as the medic of the circus troupe, taking care of any injuries that occur during the shows.
One interesting Naruto Ringmaster fanfiction could be where Naruto becomes a ringmaster in a circus that features all kinds of ninja - like acts. For example, Sasuke could be a fire - breathing performer using his Sharingan - enhanced fire jutsu in a new and exciting way. Another might involve Naruto using his shadow clones to create a whole army of performers, making the circus show a huge success.
Sakura could be one of the performers, showing off her medical ninjutsu skills in a unique and entertaining way. Sasuke might be a brooding figure who is part of a dangerous acrobatic act. And Kakashi could be Naruto's adviser, helping him run the circus behind the scenes.
Well, one possibility could be that Naruto somehow gains the ability to perform bankai. He might use it in a battle against a powerful new enemy. For example, he could combine his own ninja skills with the unique powers of bankai to create a whole new combat style that surprises his foes.
Perhaps in this fanfiction, Naruto discovers that he has some unique weapon - like abilities that are different from his normal jutsu. It could lead to a whole new adventure where he has to learn to control this 'weapon' aspect of himself while still being true to his friends and the village.
Well, one possible plot could be that Naruto discovers a new form of chakra that is related to digital energy. He then uses this to hack into systems to prevent a global digital meltdown that some evil hackers are planning. He teams up with his friends, who also have unique digital abilities, and they fight against the bad guys in the virtual world.
One possible plot could be that Naruto is somehow reincarnated as Fenrir. He might retain some of his ninja abilities but also gain the powers of Fenrir like super strength and the ability to change forms. He could then use these combined powers to protect the Hidden Leaf Village from a new and powerful enemy that normal ninja techniques can't defeat.
Perhaps Naruto is injured while on a solo mission to infiltrate an enemy stronghold. He gets caught and tortured, which leaves him severely injured. Sakura and the others then launch a rescue mission, and during the journey back, they face many challenges in keeping Naruto alive and treating his wounds.
The plot could be centered around a mystery. Yuriko discovers a strange artifact and Naruto, being the curious ninja he is, joins her to figure out what it is. Along the way, they face opponents who also want the artifact for their own malicious purposes.
The plot could involve Naruto traveling to the world where the Undertaker exists. There, he could learn some dark arts or special fighting techniques from the Undertaker. He might also form an unlikely alliance with the Undertaker to fight a common enemy that threatens both the ninja world and the Undertaker's domain. This would lead to Naruto having to adapt to a completely different set of rules and powers.