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.
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.
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.
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.
In this fanfiction, Naruto might gather those who also feel ostracized. He could build a village based on acceptance and equality. His new village might have unique ninja training methods that focus on individual strengths rather than just traditional clan techniques.
Well, it could be really wild. Naruto might grow up with some really strange and dangerous habits from the xenomorphs. Maybe he'd be super stealthy and have a very different sense of combat.
He'd probably be more aggressive. The xenomorphs are aggressive creatures, so Naruto might not be as friendly as in the original story.
Naruto's Rasengan could be a powerful weapon. He could use it to smash into the Xenomorphs' hard exoskeletons. Sasuke's Chidori might be able to pierce through their bodies. And Sakura's super strength could be used to physically overpower the Xenomorphs if she can get close enough. Shikamaru's intelligence would also come in handy for devising strategies to outwit the Xenomorphs.
One possibility is that he could rewrite his own adventures in a more humorous or self - deprecating way. For example, making fun of his early failures in ninja training.
His friends like Sasuke would most likely support him. Sasuke, having walked a long path of redemption, would see Naruto's vision of an empire as a way to finally achieve the peace they both have been longing for.