The plot might revolve around Naruto growing up in a different world or with a different family dynamic due to being the son of Laxus. He could face challenges in both the ninja world and the world of Laxus' origin. He may have to prove himself to both the ninja clans and the magic guilds. He might struggle to fit in at first but then use his unique combination of abilities to become a great hero in both realms.
In this fanfiction plot, Naruto could be brought to the Fairy Tail world as a young child. Laxus, being his older brother, takes it upon himself to protect Naruto. As Naruto grows, he discovers his own unique brand of magic that is influenced by his ninja abilities. They get involved in a big conflict where the guild is split into different factions. Naruto and Laxus have to use their combined strength and their unbreakable brotherly bond to reunite the guild and defeat the external threats that are taking advantage of the guild's internal strife. This could be a story full of action, emotion, and the exploration of two very different yet similar characters.
The plot could start with Naruto's arrival in the Fairy Tail world. As Laxus' older brother, he would immediately take on a protective role. He could use his rasengan and other jutsu to fight off enemies that threaten Laxus or the guild. Naruto might also try to bridge the gap between the two different power systems - chakra and magic. Along the way, there could be a lot of character development for both Naruto and Laxus. Laxus could learn about Naruto's past and the struggles he had in his own world, which would inspire him to be a better mage. And Naruto would adapt to the Fairy Tail world, using his skills to help the guild grow and protect it from internal and external threats.
In addition to Naruto and Laxus, there could be characters from the world where Laxus comes from. Maybe some of his comrades in the magic guild. They could be curious about Naruto, or they could be skeptical of him because he is from a different world. And of course, the villains in the story would be important characters too. They could be after Naruto's power or trying to disrupt the balance between the ninja and magic worlds because of his existence.
Well, perhaps Laxus has some misguided notion that Lucy has information vital to the guild's safety. So he kidnaps her thinking he can extract it from her quickly. But in reality, Lucy has no such information and she has to convince Laxus of that.
Well, perhaps the story could start with a powerful magic spell gone wrong that turns Laxus into a baby. His friends might be shocked at first. They then have to take care of him, like feeding him and changing his diapers. It could be a really comical situation with his big, tough personality now trapped in a baby's body.
The plot might involve Naruto having to deal with the stigma of being the'son' of Sasori. He could struggle to find his place in the ninja world while also having to face the enemies that Sasori made in his past. And he might use the skills he learned from Sasori in unexpected ways to protect his friends and the village.
The plot might revolve around Naruto being ostracized because of his relation to the 'son of scar' title. He then has to prove himself not only as a ninja but also to overcome the stigma associated with this identity. This could lead to many adventures where he battles against those who misjudge him and in the process, uncovers the truth behind the scar and his heritage.
Well, it could be about Naruto growing up in the Hyuga clan. Maybe he discovers his true parentage early on and has to deal with the expectations and politics of the clan. He might learn the Gentle Fist technique in a different way than Neji or Hinata.
Well, it could be about Naruto having some of Azula's traits. Maybe he has her strategic mind. For example, in battles, he could use her style of planning and outwitting opponents. And perhaps he has some of her fire - bending - like abilities translated into his ninja skills, like really powerful and precise fire - style jutsu.
Well, it could be about Naruto having some special powers or a connection to Ra due to being his 'son' in this fanfiction. Maybe he has to face new enemies or challenges related to this new identity.