Well, Naruto might have some training sessions with his pet tiger. The tiger could be a great sparring partner, teaching Naruto new combat skills or helping him improve his reflexes. They could also go on missions together, with the tiger using its natural abilities like stealth and speed to assist Naruto in completing the tasks.
The tiger could be very protective. Since Laxus is its owner, it would be fiercely loyal and would not hesitate to defend him against any threat. It might be a bit wild at heart still, with a playful side that comes out when it's just with Laxus in a safe environment.
Sasuke might be initially suspicious of the tiger. He'd see it as a potential threat or distraction for Naruto. But as he sees how well they work together, he might start to respect the bond.
Well, it could change a lot. For one, Naruto would have a super powerful ally. The dragon could help him in battles against tough enemies like Pain or Madara. It might also change how others in the village see him. Instead of just being the Jinchuriki of the Nine - Tails, he'd be the guy with a dragon too. This could lead to new adventures as he tries to figure out how to take care of the dragon and use its powers to protect the village.
The pet dinosaur could be from a hidden part of the Naruto world, perhaps a place where ancient and extinct creatures were preserved by some kind of powerful jutsu. Maybe it was discovered during one of Naruto's adventures, like in a deep, unexplored forest or a secret underground cave.
In a 'naruto has a pet dog' fanfiction, the dog could be a great companion during Naruto's training. It might be a stray that Naruto found and decided to take care of. The dog could have special abilities, like being able to sense danger or find hidden things. It could also be a source of comfort for Naruto when he's feeling down about his lack of progress or when he misses his friends.
The pet dinosaur could be a great asset in combat. It could use its size and strength to intimidate opponents or directly engage in battle. For example, it could charge at enemies, knocking them down with its powerful body.
Naruto's relationship with the pet fox could develop through shared adventures. For instance, when they are on a mission together. The fox might get injured, and Naruto would do everything he could to save it. This would strengthen their bond. Also, in quiet moments, they might just sit together and the fox would listen to Naruto's dreams and fears, becoming his most loyal confidant.
One plot could be that the pet fox has special powers. For example, it can communicate with Naruto telepathically. This allows it to warn Naruto of incoming danger or give him advice during battles. The fox could also have the ability to transform into different forms, like a small, unnoticeable creature to spy on enemies.