Another possibility is that his Kekkei Genkai gives him the power of telepathy on a much larger scale. Not only can he communicate with others mentally, but he can also influence their thoughts and actions to a certain extent. This could add a whole new layer of intrigue to the story, especially in political or strategic situations where mind control or persuasion could be crucial.
It might isolate him. If his Kekkei Genkai is very powerful and different, others could be afraid of him. For example, if he has the power to see into people's souls, it could make people uncomfortable and they might avoid him.
Well, it could be something like a fire - based kekkei genkai that allows Naruto to control blue - flame fire which is hotter than normal fire. This would give him an edge in battles and also a new look to his fighting style.
Well, in some fanfictions, Naruto might obtain all kekkei genkai through some sort of ancient and powerful jutsu. Maybe he discovers a hidden scroll or meets a mysterious sage who imparts this power to him.
It could be a water - based kekkei genkai. Since the Wave arc has a lot to do with water, it would make sense for Naruto to awaken a kekkei genkai related to water. This could give him an edge in battles, especially in the Wave region where water is abundant.
Another possibility in fanfics is that Naruto could have a Kekkei Genkai that is related to space - time manipulation. This could be inspired by his connection to the Nine - Tails and the fact that he has access to a lot of chakra. With this Kekkei Genkai, he could teleport short distances or even create small pocket dimensions to store items or trap enemies.
In Akatsuki fanfiction, Sakura Haruno might be given a unique Kekkei Genkai. It could be something related to enhanced strength or perhaps a special type of medical ninjutsu on a whole new level. For example, her Kekkei Genkai could allow her to heal not just physical wounds but also mental traumas instantaneously, which would be a very interesting addition to her character in the context of Akatsuki fanfiction.
One common combination is the Sharingan and the Rasengan. The Sharingan's ability to analyze and predict movements can be really useful when Naruto is forming and launching a Rasengan. Another could be the Byakugan and Sage Mode. With the Byakugan's enhanced vision, he can better sense the chakra flow around him in Sage Mode, making his attacks more precise. Also, sometimes you see him with the Ice Release along with his regular Wind Release. He could then create ice - infused wind attacks that are both cold and sharp.
To integrate the Uzumaki clan's kekkei genkai into a new story line, consider creating a mystery around it. The main character could start off not knowing they have this kekkei genkai, but they keep experiencing strange events. As they investigate, they find out about their Uzumaki heritage and the kekkei genkai. They then have to figure out how to use it to solve the mystery of an ancient evil that is related to their clan. You can also have the kekkei genkai be a key factor in a tournament or competition. The Uzumaki character has to use their kekkei genkai in creative ways to win and prove the worth of their clan.
One interesting concept could be exploring an unknown kekkei genkai of the Uzumaki clan that gives them the ability to manipulate time on a small scale. For example, they could slow down time for a brief moment in battle, giving them an edge. Another idea is a kekkei genkai that allows them to communicate with the spirits of their ancestors, gaining wisdom and power from them. Maybe a kekkei genkai that lets them transform into a powerful beast form related to their clan symbol.