In fanfiction, Naruto could create Xenomorphs through some sort of jutsu gone wrong. Maybe he was experimenting with a new form of shadow clone jutsu and accidentally combined it with some dark chakra that had mutagenic properties. This could result in the creation of Xenomorph - like creatures.
If Naruto creates a lightsaber, it could be related to his connection with Kurama. Kurama's chakra is extremely powerful. It's possible that this chakra could be harnessed in a way that can mimic the energy source of a lightsaber. Naruto, being the creative and adaptable ninja he is, would then figure out how to shape and control this new form of energy into a blade, much like a lightsaber. And he would surely use it to protect his friends and the Hidden Leaf Village.
The consequences would be disastrous. Xenomorphs are extremely aggressive and dangerous creatures. They would likely start attacking the people in Naruto's world. Villages would be in chaos as they try to fend off these alien threats. Naruto would probably feel a great sense of guilt for creating such a menace.
In such a fanfiction, Naruto might create Xenomorphs through some kind of powerful jutsu. Maybe he accidentally combines his chakra with some unknown and dangerous genetic material during an experiment or a battle, which then mutates and evolves into the Xenomorphs.
In fanfiction, Naruto creating Chidori could be possible through some creative plot devices. Maybe he was taught by Sasuke in an alternate universe where they teamed up earlier. Or perhaps he discovered a scroll that had the knowledge of Chidori and was able to learn it on his own with his determination and quick - learning ability.
One way to write this fanfiction is to give Naruto a reason for creating the Flash Step. For example, he could be in a battle against an enemy who is extremely fast and elusive. Frustrated by his inability to keep up, Naruto decides to create a new technique. He starts by training his body to be more responsive and his reflexes to be quicker. He could also seek advice from other fast characters in his world, like Rock Lee. Then, using his creativity and knowledge of ninjutsu, he combines different elements to form the Flash Step. It could be a jutsu that requires a large amount of chakra at first but becomes more efficient as he masters it.
Well, if Naruto were to create an Akatsuki fanfiction, one way the storyline could develop is by having Naruto try to understand the motives of the Akatsuki members more deeply. He might explore the idea of redemption for some of them. For example, he could write about how Pain, after seeing the destruction he caused, might have a change of heart. Naruto could also create scenarios where the Akatsuki members interact with the villagers of Konoha in a more positive light, like how Sasori could use his puppet - making skills to help the kids in the village create toys instead of weapons.
He'd probably be more aggressive. The xenomorphs are aggressive creatures, so Naruto might not be as friendly as in the original story.
One implication could be a threat to the ninja world. Xenomorphs are very dangerous creatures, so Naruto's creation might put his friends, family, and the entire village in danger.
Well, it could be a wild mix of magic and mutation. Maybe Harry Potter uses his magic to accidentally create a mutant in the world of 'sch' (whatever that is in the fanfiction context). It could lead to a whole new set of adventures as he tries to deal with the consequences of this creation, like trying to find a way to control or help the mutant.
One possible plot could be that Naruto, using his unique skills and leadership, unites the various ninja clans under his banner to form an empire. He might introduce new forms of governance that combine ninja traditions with more democratic ideals, ensuring equality among all citizens regardless of their ninja abilities.