Dumbledore might pay a visit. He could come to offer some cryptic advice or to share some important information about the events that led Harry to the hospital wing. His presence would always add a sense of mystery and wisdom to the scene.
Perhaps Sirius Black, if he was still alive in the fanfiction world. He'd be worried about Harry and would come to check on him. He might tell Harry some stories about his father or give him some tips on how to deal with the challenges that lie ahead, especially if the situation that landed Harry in the hospital wing was related to the fight against the dark forces.
Hermione would surely visit. She'd be there with a stack of books, ready to help Harry catch up on his studies while he recovers. And Ron would be right beside her, probably with some treats from the Hogwarts kitchen.
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.
His best friend Grover would surely visit him. Grover would bring some of Percy's favorite foods from Camp Half - Blood, like blue cookies. Annabeth would also be there. She'd probably be reading books on mythology, trying to find a way to help Percy get better faster.
Harry Potter could visit Snape in the hospital. Despite their past differences, Harry might feel a sense of obligation or curiosity. He could be there to finally have an honest conversation with Snape and perhaps gain a better understanding of his actions throughout the years.
Obviously, Harry, Hermione, and Ron could be main characters. They often get into trouble and end up in the Hospital Wing. They could be there to visit an injured friend or because they themselves are injured. Neville could also be a main character, maybe he discovers some new plants that have healing properties in the Hospital Wing.
Maybe he'll encounter a group of young wizards and witches who are also patients. They could form a bond and share their magical experiences. For example, they might talk about their different encounters with magical creatures outside of Hogwarts. This group could also play a role in helping Harry solve a problem that arises during his time in the hospital, like a malfunctioning magical device that is causing chaos in one of the wards.
His teammates, Sasuke and Sakura, would surely visit him. They are his closest comrades, and they would be worried about his condition.
Ino would most likely be there too. Since they have been friends since childhood, Ino would be worried about Sakura's condition. She might bring some flowers and stay by Sakura's bedside, chatting with her about their memories and the village.
His friends like Misty and Brock would probably visit him.
In fanfiction, Harry Potter in the hospital wing might have strange visions. Maybe he sees the memories of other Hogwarts students who were once treated there. It could be a way for the author to introduce some hidden lore or backstories of the school.
His best friends, Ron and Hermione, would most likely visit him. They have always been by his side through thick and thin, so they would find a way to get to the tent to check on him, bring him supplies, and offer their support.