Well, in Naruto multiple tenants fanfiction, a great concept is the idea of secret alliances among the tenants. Some tenants might form hidden pacts to gain an edge over others in the village. Also, the concept of tenant - specific training grounds could be explored. This would mean that each clan has its own special area for training that is influenced by their unique abilities and traditions.
One interesting concept could be Naruto crossing over with other popular anime like One Piece. Imagine Naruto and Luffy teaming up, it would be a very powerful combination with Naruto's ninja skills and Luffy's rubber abilities. Another concept might be Naruto in a crossover with a fantasy world like Lord of the Rings, where he has to deal with new types of magic and races.
Another concept is the origin of these multiple bloodlines. In fanfiction, some might explore the idea that there was an ancient clan that had all these bloodlines but they were split over time. This could lead to a story where a character discovers their heritage and has to learn to control all these different powers.
One interesting concept could be the unique combinations of powers. For example, a character might have both the Sharingan and Byakugan bloodlines, leading to new and powerful jutsu combinations. Another concept could be the exploration of how different bloodlines interact within a character's body, like how they might conflict or enhance each other.
One interesting concept could be the unique combinations of summons. For example, a character might be able to summon both fire - based and water - based creatures simultaneously, leading to new and unexpected battle strategies. Another concept could be the origin and history of these multiple summoning contracts, perhaps they were created by an ancient shinobi who had mastered different elements.
One concept could be that Naruto's multiple personalities are the result of the Nine - Tails' influence. Maybe different chakra levels or moods of the Nine - Tails bring out different sides of Naruto. Another interesting idea is that his personalities are a reaction to the different types of ninjas he encounters. For example, when facing a sneaky ninja, a more paranoid and cautious personality surfaces. Or perhaps his personalities are tied to the different elements he can control, like a fire - related personality being more passionate and impulsive.
One interesting concept could be a Naruto with the Sharingan. This would completely change his combat style and how he perceives the world. He could use genjutsu more effectively and might have an easier time predicting his opponents' moves. Another concept could be Naruto having the Byakugan. It would give him enhanced vision, which would be extremely useful in both battle and for scouting. And then there's the idea of Naruto having the Wood Release. He could use it for both offense and defense, creating massive forests to hide in or using wooden constructs to attack his enemies.
The characters can develop differently in terms of their relationships. For example, Naruto might have closer ties with some tenants due to shared interests or goals. He could learn different jutsu from them and thus have a more diverse skill set.
One interesting concept could be the complex power dynamics. With multiple lordships, there would be a web of influence and politics. For example, different lords might have their own agendas regarding Hogwarts' management or the wizarding world's future. Another concept could be how characters like Harry Potter interact with these lordships. He might be forced to navigate through the different power - hungry lords while still maintaining his own values.
In this fanfiction, perhaps there are new magical creatures or elements introduced due to the multiple lordsgips. It could expand the already rich magical world of Harry Potter. There might be new spells or magical artifacts that are related to these lordsgips, and the story could revolve around characters' quests to discover or master them.
Some fanfictions might explore the idea of Naruto befriending an Espada. This friendship could lead to Naruto learning about different ways of combat and power management from the Espada. It could also result in the Espada having a change of heart due to Naruto's positive influence, and together they could face new threats in the Naruto universe that neither could face alone.