Well, it could start with Naruto coming across a strange Pokemon in his world. Maybe a Pikachu somehow gets transported to the Hidden Leaf Village. Naruto, being curious as always, is immediately intrigued by this cute yet powerful little creature. He starts to learn about Pokemon from the knowledge that comes with Pikachu, and gradually becomes a huge fan.
Yes, there is. The world of fanfiction often combines different popular franchises. Naruto and Pokemon are both highly popular, so it's not uncommon for fans to create stories where the two universes intersect. These fanfictions can range from simple crossovers where Naruto characters encounter Pokemon, to more complex stories that blend the elements of both worlds like ninja using Pokemon in battle or having Pokemon in the Hidden Leaf Village.
A common trope is the idea of the Pokemon having chakra. This allows for some interesting interactions between the Naruto and Pokemon universes. Also, there's the trope of Pokemon trainers from the Pokemon world ending up in the Naruto world and having to adapt to its ways. They might end up in a ninja village and have to learn about ninjas and their skills. Sometimes, there are crossovers where legendary Pokemon play a big role in Naruto - related events, like helping to defeat a powerful enemy in the Naruto world.
In fanfiction, the characters can interact in many ways. One way is if a Pokemon has some sort of healing ability and it tries to help Naruto with the negative effects of the Nine - Tails' chakra. Or, a Pokemon that can sense emotions might be able to communicate with the Nine - Tails on a deeper level. Also, Naruto could teach Pokemon some ninja - like moves, and in return, Pokemon could show Naruto new ways to use the Nine - Tails' power for non - combat purposes, like using its chakra for energy sources similar to how some Pokemon can generate electricity or heat.
I think Bulbasaur would be a good match. Naruto has a strong connection to nature in his own world, and Bulbasaur is a nature - based Pokemon. Naruto could use his knowledge of plants from his ninja training to help Bulbasaur grow stronger.
You can try websites like Fanfiction.net or Archive of Our Own. They have a large collection of fanfictions, and you can simply search for 'Naruto Pokemon' in their search bars to get relevant results.
Naruto would probably be really excited. He'd be like 'Whoa! These creatures are so cool!' and would want to befriend them all right away. He might be especially drawn to the more energetic and spunky Pokemon like Charmander.
If Pokemon become real as in fanfiction, there would be chaos at first. People would be both excited and scared. Some might try to catch the wild Pokemon like in the games, but there would be issues of where to keep them. Also, Pokemon battles could cause real damage to the environment and cities.
Yes, there are likely some fanfictions out there with this concept. The idea of combining elements from Naruto and Pokemon in a story where a Naruto - like character is the 'father' in a Pokemon - related scenario can be quite creative. However, finding a specific one might require some searching on fanfiction websites.
Another possibility is that Pokemon exist in the Naruto world. Some ninja could have Pokemon as partners instead of traditional ninja animals. For example, Sasuke could have a Dark - type Pokemon like Umbreon that would match his cool and mysterious personality. And the Pokemon battles could be incorporated into the ninja battles, adding a new layer of strategy.