In the fanfiction, the first students could be a mix of young wizards and witches who have shown exceptional magical abilities but didn't fit into the traditional Italian magical schools. There might be a young wizard who has an affinity for ancient Roman magic but was not encouraged in his previous school. And a witch with a talent for transfiguration but was bullied in her old place. Harry Potter's new school in Italy could be their new home, where they can explore their magic freely.
Maybe some young mutants that Harry discovers during his travels in the Muggle world. He could sense their powers and offer them a place at his new school.
His own children could be among the first students. They would bring their own experiences of growing up with Harry Potter as a father, and also their unique magical abilities. And Neville Longbottom's children might also be there. Neville has always been a great friend of Harry's and his kids would inherit Neville's strong sense of justice and love for plants, which could add a different dimension to the student body.
Well, perhaps Harry Potter decides to build a school in Italy to spread the knowledge of magic in a new region. He might face challenges like getting approval from the Italian Ministry of Magic, if there is one in the fanfic. And he would need to find suitable teachers who are familiar with both the British and Italian magical traditions.
Hermione would definitely be one of the first people to help. With her vast knowledge of magic and her organizational skills, she could assist in setting up the curriculum and library. Ron could also help, perhaps in handling the more physical aspects like building repairs or helping with the magical creatures that might be part of the school. Neville could contribute his knowledge of Herbology to create a great garden for the school.
Perhaps it's a girl orphan who was found wandering near the Forbidden Forest. She has no memory of her past but shows great potential in potions. Harry feels a connection to her because she seems so lost, just like he once was. So, he decides to take her in as the first orphan in his new orphanage.
It could be a mix of students from different houses. In Hogwarts, students from all four houses come together for classes. Harry, having experienced the unity and rivalry among the houses, would be able to handle the diverse group of students well. He might encourage more inter - house cooperation in his classes, breaking down some of the traditional house rivalries.
Hermione would surely be one. She's smart and would be great at helping with the academic side of building a school, like creating the curriculum.
Well, in fanfiction, Neville Longbottom could be one of the visitors. He and Harry could exchange gardening tips as they explore the manor's gardens. Additionally, Dumbledore's portrait might be magically transported to Potter Manor, and he could offer his wisdom and guidance to Harry as he lives in the manor. And of course, Hagrid might come with some magical creatures to show Harry, adding more excitement to the manor.
He might adjust by quickly learning the Italian language. This would help him in his studies and in making friends.
His friends from Hogwarts, like Ron and Hermione, are likely to help. Ron could bring his family's practical knowledge of wizarding homes and Hermione would contribute with her extensive research skills.