Yes, there could be such fanfictions. In the Naruto universe, different characters often admire or are influenced by others. Naruto might be interested in the Raikage's strength, leadership style, or unique abilities. This could lead to an interesting fanfiction exploring their relationship in terms of Naruto being a 'fan' in some sense.
Naruto could be a great character to pair with the 5th Raikage. Their interactions could explore the relationship between the Hidden Leaf and the Hidden Cloud, and they could team up to face a common enemy.
One possible plot could be Naruto visiting the Hidden Cloud Village and being in awe of the Raikage. He might seek to train under the Raikage to learn his unique lightning - based jutsu. The Raikage could initially be reluctant but eventually see Naruto's potential and start training him. This would lead to Naruto growing stronger and also forging a bond with the Raikage and the Cloud Village.
Well, in this kind of fanfiction, Naruto might gain a whole new set of skills. The Raikage is known for his strength and tough training methods. So Naruto could become even more powerful in combat. He might also be exposed to a different culture within the Hidden Cloud Village. And perhaps he'd form new and interesting relationships with the Cloud ninjas.
I'm not sure of specific 'lemon' fanfictions as they often contain inappropriate content. But there are great non - 'lemon' Naruto Raikage fanfictions. For example, ones that focus on their political relationships within the ninja world. These stories can be really engaging as they show how the two powerful leaders interact with each other and with other ninja villages.
One interesting Naruto Raikage fanfiction could be about their unexpected alliance during a major battle. They put aside their differences and combine their powers to defeat a common enemy. This kind of story can explore their characters in a new light and show how they grow to respect each other.
It could be a rogue ninja from an old clan who has a vendetta against both Konoha and Kumogakure. This ninja has been gathering power in secret and plans to destroy both villages to avenge his clan's past defeat at the hands of the combined forces of the two villages.
A plot could involve the Raikage visiting Konoha for some diplomatic meetings. Naruto, being the friendly and curious guy he is, shows the Raikage around the village. Along the way, they get into some small adventures together, like helping out some local kids or dealing with a minor threat within Konoha. This helps them form an unexpected bond and understand each other's cultures better.
A good storyline might involve the 5th Raikage training a new generation of shinobi in the Hidden Cloud. He could discover a young prodigy and take it upon himself to mold them into a great ninja. This would include teaching them not only combat skills but also the values of loyalty and perseverance. For example, he could send the young ninja on difficult missions to test their mettle and grow their skills. And as they face setbacks, the Raikage would be there to offer guidance and motivation.
Well, one possible plot could be that Naruto is wrongly accused in Konoha and banished. He then travels to the Land of Lightning. There, he shows his amazing skills and strength which are recognized by the people. Gradually, he rises through the ranks and becomes a candidate for Raikage. He uses his ninja way to bring new ideas and unity to the village, facing challenges from traditionalists along the way.