Well, with Minato's personality, Naruto would probably be more reserved in showing his emotions. He wouldn't be as boisterous or loud as he usually is. This could change his relationships too. For example, his interactions with Sasuke might be less about yelling out his feelings and more about subtly trying to understand and help him. Also, his leadership style could be more like Minato's, inspiring trust in his comrades through his composed and intelligent demeanor.
If Naruto had Gaara's personality, the story would be very different. Naruto is usually outgoing and boisterous, while Gaara is more reserved and initially cold. With Gaara's personality, Naruto might not be as quick to make friends. He'd be more guarded and less likely to trust others easily. This could change his relationships with characters like Sasuke and Sakura. His interactions with the villagers would also be different. Instead of trying to gain their approval through big shows of strength and determination, he might keep more to himself, which could slow down his journey to becoming Hokage.
Naruto would likely be more confident. Growing up with his parents, he wouldn't face the same neglect and ostracism. So he wouldn't have to constantly seek attention in a loud or brash way.
Naruto's personality would be different. He'd be less lonely - driven, as he'd have Minato's love. He might be more focused on being a great ninja like his father from the start.
Naruto's personality would be a blend of his own natural exuberance and the more composed natures of Minato and Kushina. He might be less impulsive as Minato's strategic thinking would influence him. Also, Kushina's strong - willed nature would make him more determined and less likely to be swayed by others' negative opinions.
Naruto's personality could become more brooding. Having the power of the Death Note might make him more aware of the darker side of power. He might not be as open and friendly as he usually is, since he has this secret and rather sinister tool at his disposal.
As for Jiraiya, when Minato is reborn as Naruto, their relationship would be a strange mix of past and present. Jiraiya would see Naruto as a different person but with flashes of Minato's personality. Minato, on the other hand, would have to balance his past relationship with Jiraiya as his teacher and his current situation as Naruto. This could lead to a more complex and interesting bond, with Minato perhaps pushing Jiraiya to be more open about certain secrets earlier.
Naruto's normally upbeat and energetic personality might become more subdued. He'd have to face the reality of his own mortality, which could make him more cautious and less impulsive.
Minato's presence would likely make them closer. He'd encourage them to see each other as brothers. Since Minato is Naruto's father, Naruto would have more confidence and be more at ease, which would make Sasuke respect him more. They'd have a common figure to look up to and follow his teachings together.
Regarding his friends, Naruto with Minato's personality would have a different dynamic. His bond with Shikamaru, for instance, would be more about intellectual exchanges. They would probably plan strategies together more smoothly. His relationship with Hinata would also change. Instead of Naruto being the energetic and somewhat clueless one about her feelings, he would be more perceptive. He would pick up on her signals earlier and handle their relationship in a more refined way. And with the other Konoha 11, he would be more of a guiding figure, much like Minato was for his generation.
If Naruto becomes involved with Slenderman in a fanfiction, his usually cheerful and determined personality might become darker. He could be more withdrawn as he grapples with the strange and often terrifying aspects of Slenderman's world.