Well, it could be related to some new jutsu he discovers in the fanfiction world. Maybe he combines his nature transformation with his unique ability to connect with nature. For example, he first creates a bond with the plants that produce the flower petals, and then he can manipulate the petals as if they were an extension of himself. This could be a result of his growth and exploration of new powers beyond what we see in the original series.
One possible scenario is that Naruto uses the flower petals for stealth. He can make the petals float around him, camouflaging his presence. Another is that he uses them in a romantic context, like creating a flower petal - filled scene for a special moment with someone he loves.
Foxes are quite common. Given Naruto's connection with the Nine - Tailed Fox, it makes sense that in fanfiction, he might be able to control other foxes. They can be used for scouting or as distractions in battles.
One idea could be that Naruto gains some new power or jutsu that allows him to control Anko's actions in a non - malicious way. Maybe it's a form of genjutsu that he accidentally uses on her during a training session, and then has to figure out how to reverse it.
In a 'Naruto controls snow' fanfiction, it could be that Naruto is cursed by an enemy. As a result, his chakra is somehow linked to snow. At first, he struggles to control this new power, but with the help of his friends and some intense training, he masters the ability to control snow and turns it into a powerful weapon against his foes.
In the fanfiction where Naruto controls the Tesseract, it could change the power dynamics completely. Naruto is already a powerful ninja, but with the Tesseract, he could become near - invincible. He might be able to use the Tesseract's space - bending abilities to surprise his enemies in battle. For example, he could suddenly appear right in front of them or make them disappear into another dimension. Also, he could potentially use it to heal wounds or revive the dead, if he discovers all of its powers, which would make him not just a hero in his own world but maybe in the entire multiverse of the fanfiction.
In a more comical fanfiction, Naruto might accidentally control Anko's eating habits. Let's say he uses a new jutsu that backfires and instead of affecting an enemy, it affects Anko. So, every time Naruto thinks about a certain food, Anko starts craving it and can't resist. This would lead to some really funny situations as Anko tries to fight against this strange control while Naruto is desperately trying to figure out how to undo the jutsu.
The exploration of their relationship is also important. It could be a romantic relationship where Hinata's control adds a new layer of depth. Maybe she controls Naruto in a way that helps him understand his feelings for her better. Or it could be a platonic relationship where she helps him grow as a ninja by controlling certain aspects of his training or decision - making process. In many cases, it shows how Hinata's influence can be a positive force for Naruto.
In 'naruto controls the darkness' fanfiction, it could also be that Naruto is exposed to a dark energy source accidentally. This energy starts to influence his thoughts and actions in negative ways at first. But being Naruto, he doesn't give in. He uses his strong willpower and the positive relationships he has with his friends like Sasuke, Sakura, and others to find a way to control this new dark power. He might have to face some of his own demons from his past, like the loneliness he felt as a child or the times he failed to protect his friends, and use these experiences to better understand and control the darkness within him.
It could be the Akatsuki members. Since they are often the main villains in the Naruto universe, they might also play that role in this fanfiction. They could be trying to stop Naruto from using his control over Sakura to achieve something that would be a threat to their plans.