With Dumbledore, it would be a complex relationship. Dumbledore would be cautious yet intrigued by Harry. He would want to guide Harry away from the potentially dark path that his Nathrezeim upbringing could lead him to. Harry, on the other hand, might be resentful of Dumbledore's interference at first.
His relationship with the Malfoy family could be completely turned on its head. Instead of being rivals, they might see Harry as an ally of sorts. After all, the Malfoys have their own connections to the darker side of magic, and Harry's Nathrezeim upbringing could make them view him in a different light. However, this new relationship would also be full of power plays and hidden agendas.
His relationship with Ron and Hermione would be very different. Since he's been raised by the founders, he might be more aloof from the typical Gryffindor camaraderie. He could see Ron's insecurities in a different light, perhaps being less patient with them. And with Hermione, he might be more critical of her book - learning approach as he's been taught by the founders themselves.
His relationship with Hermione would be very different. Instead of being friends, they might be enemies at first. Since he was raised by Death Eaters, he might look down on Hermione as a Muggle - born. But as he gets to know her better, he could start to question his beliefs.
His relationship with Ron would be very different. Ron might be initially distrustful or even hostile towards Harry in Slytherin. But as the story progresses, they could come to understand each other better. Harry's relationship with Hermione could also change. She might be more cautious around him at first, but then realize that Harry is still the same person deep down. And his relationship with Draco would be much more complex. They could start as rivals, but then become allies in some situations, as they both have a connection to Slytherin.
When it comes to his friends like Shikamaru and Choji, Naruto might distance himself from them. Zabuza is a loner, and being raised by him, Naruto could start to prefer solitude. He might not value the group dynamic as much as he does in the original story and instead focus on his own strength and survival skills.
His relationship with Sasuke would be very different. Instead of seeing Sasuke as a rival and a friend, he might view him as a potential threat to the village from the start. With Sakura, he may not be as friendly or protective. His bond with Kakashi would likely be non - existent or at least very strained, as Danzo and Kakashi have different outlooks. Naruto would probably be more isolated from his peers, as Danzo's upbringing would make him more guarded.
His relationship with Sasuke would be drastically different. Instead of being rivals from the Leaf Village, they could be on opposite sides. Sasuke might see Naruto as a traitor to the Leaf and Naruto might see Sasuke as someone who doesn't understand the Akatsuki's motives. With Sakura, Naruto might not have the same protective feelings. He could view her as just another ninja from a village that the Akatsuki has issues with.
His relationship with Hermione would likely change. Hermione is used to the human Harry, but now she has to deal with a phoenix - form Harry. She would probably be very curious and start researching immediately about any historical cases of humans turning into phoenixes. Ron, on the other hand, might be a bit more hesitant at first. He's used to the regular Harry and this new form might seem a bit strange to him. But overall, his friends would be protective of him. They would want to make sure that he is safe in this new form and not exploited by those who might want to use his phoenix powers for their own gain.
His relationship with Hermione would be very different. Hermione, who is an advocate for house - elf rights, would be in a strange position. She might try to help Harry break the spell, but also be conflicted about treating him like a normal house - elf. With Ron, Ron might not take Harry as seriously at first in his house - elf form, but then realize that it's still Harry and they need to work together. And with Snape, Snape would probably be even more dismissive of Harry as a house - elf, but Harry would still find ways to get under his skin.
His relationship with his enemies would change significantly. Voldemort or his Death Eaters might not recognize Harry as a rabbit at first, which could give Harry an advantage in some ways. However, if they did find out, they might see it as an opportunity to either capture or harm him more easily. Among his friends in Gryffindor, they would all be very concerned. Neville, for example, might try to use his knowledge of Herbology to find a way to reverse the transformation. And Ginny would be especially protective, seeing Harry in such a vulnerable state as a rabbit.
Some of the more traditional wizarding families, like the Malfoys, would likely oppose Harry's actions. They have always held a certain view of the goblins as being inferior. This would further widen the gap between Harry and those who uphold such old - fashioned and discriminatory views. However, among the younger generation of wizards who are more open - minded, Harry's actions could inspire them to re - evaluate their own views on the goblins, and he could gain new friends and supporters from this group.