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.
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.
Naruto would probably choose a Pikachu first. Pikachu is energetic and has a lot of spunk, just like Naruto. They would both be full of enthusiasm and would make a great team right from the start.
Naruto would probably be really curious about Pokemon. He might try to use his ninja skills to catch them in a really acrobatic way. And with the Nine - Tails' power, he could potentially sense the strength of different Pokemon. He'd likely befriend the more friendly - looking ones first and might even try to ride on some of the bigger Pokemon like a Charizard or a Gyarados if he could manage it.
I think Mewtwo would be the most fascinating for Naruto to talk to. Mewtwo is a very intelligent and powerful Pokemon. It has complex thoughts about its existence and purpose. Naruto, with his own struggles and growth in the ninja world, could have deep philosophical discussions with Mewtwo. They could exchange ideas about power, identity, and what it means to be different in their respective worlds.
Naruto himself would be a great addition. His determination and ability to never give up would translate well into being a Pokemon trainer. He could bond quickly with his Pokemon. Also, Kakashi would be good. His intelligence and strategic thinking would help in planning battles. And then there's Shikamaru. His lazy - but - brilliant mind could come up with unique battle strategies using the Pokemon's abilities.
Maybe Naruto could be a Pokemon trainer in the Pokemon world. He could use his ninja skills along with his Pokemon to battle. For example, his shadow clone jutsu could be used in creative ways during battles, like sending out clone - like illusions to confuse opponents while his Pokemon attack from different angles.