The Hokage, whether it's Tsunade or someone else at the time, would have to deal with the political implications. Other villages might see Naruto's disappearance as a sign of weakness in Konoha. So, the Hokage would need to balance searching for Naruto and maintaining the village's reputation and security.
The villagers who once shunned Naruto might start to realize his importance. They would see how much they took his presence for granted. His absence could make them reflect on their past behavior towards him. Some might even join the search parties out of guilt or new - found respect.
Sakura would be very worried. She has always cared about Naruto, even if she sometimes gets annoyed with his antics. She would probably try to find him right away, thinking that he's in some kind of trouble.
However, there could be a group in Kiri who are more open - minded. They might be curious about Naruto and his abilities. They could welcome him and even offer to train with him, sharing their unique water - based jutsu knowledge in exchange for his knowledge of Konoha's techniques.
The village would likely be in chaos. Naruto, despite being an outcast in some ways, was still an important part of Konoha. The Hokage and the ninja leaders would probably send out search parties immediately to find him.
He might first find a place to hide, like an abandoned building. There, he starts to realize how difficult it is to be on his own. He has to find food and water by himself.
They would probably start searching for him. This could lead to the family members getting closer as they united in their goal to find Naruto. Or it could cause conflicts among them if they blamed each other for Naruto's running away.
Suna's reaction would depend on many factors. If Naruto arrives during a time of relative peace between the two villages, they may be more lenient. But if there are existing tensions, it could be a different story. Some Suna ninja might recognize Naruto's potential and try to recruit him for Suna, while others would be worried about the political implications of sheltering a Konoha ninja.
Tony could be initially shocked. He might not understand why Peter would run away, especially if they had a good relationship before. He'd probably start searching for Peter right away, using all his resources.
One possible reason could be the constant feeling of being an outcast in the village. Despite his efforts, many villagers still look at him with suspicion because of the Nine - Tails inside him. He might feel that running away would give him a chance to find a place where he is truly accepted.
He would be extremely worried. Tony Stark, despite his tough exterior, loves his daughter deeply. He'd probably start by using all his resources to find her. He has access to advanced technology, so he'd likely use his Stark Industries gadgets to track her down.
One possible reason could be that he feels misunderstood. In the village, he has always faced discrimination because of the Nine - Tails inside him. People often look at him with fear and suspicion. So, he might run away to find a place where he can be accepted for who he is.