Hermione would be a likely candidate. She's always been there for Harry and is very empathetic. She would probably offer him some words of wisdom and a shoulder to cry on.
Ron could also comfort him. They are best friends, and Ron would use his sense of humor to try and cheer Harry up, like making a joke about Snape's greasy hair or something related to potions to lighten the mood.
In some fanfics, a new character might be introduced to comfort Harry. This character could be someone who has a special connection to potions and understands Harry's pain. Maybe it's an older student who has been through similar struggles in potions class and can offer real - life advice.
Hermione would most likely be the first to help. She's always been there for Harry and is very knowledgeable in potions. She might quickly assess the situation and try to find a counter - potion or spell to revive him.
It could be Malfoy. He often has a vendetta against Harry and might have found a way to make him collapse during potions class, either by tampering with his ingredients or distracting him in a way that leads to a mistake in the potion - making process.
One reason could be that he's facing extreme pressure in potions class. Maybe he's constantly compared to others, like Snape always having high expectations of him. Another reason might be that he has some kind of emotional turmoil related to his past traumas while in the potions environment. For example, the smell of a certain potion might remind him of a difficult time at the Dursleys.
Ron and Hermione are the most likely ones. They are his best friends and have always been by his side through thick and thin. They would probably follow him without hesitation and use their own skills, like Hermione's vast knowledge and Ron's loyalty and practical skills, to assist in the ship - stealing adventure.
Most likely Hermione. She is always looking out for Harry's well - being and would want to make sure he gets the flu shot properly. She would also be curious about the Muggle medical procedure.
There could be some new characters introduced in the fanfic. Maybe a powerful wizard from a far - off land who has heard of Harry's plight and decides to help. Or perhaps a group of outcasts in the wizarding world who see Harry as a symbol of their own struggle against the unjust system and come to his aid.
Tom and Harry are the main characters. Tom may be a character who is usually not very emotional, but in this fanfic, he has a moment of vulnerability with Harry. Harry, on the other hand, is often associated with courage and heroism, but here he is sharing an emotional connection with Tom through crying. Other characters may play minor roles, but these two are the ones the story is mainly about.
There could be some old family friends who come to see Harry at the manor. These friends might have known his parents well and can share stories about them. Also, it's possible that he meets some local witches and wizards who are associated with the Potter family. They could offer their help or give him warnings about the upcoming threats. And perhaps there are some magical beings like fairies or sprites that have made the manor's gardens their home and Harry encounters them during his stay.
Perhaps Madam Pomfrey, the school nurse at Hogwarts. Even in a fanfic, she would be the most likely person to take care of an injured student like Harry. She has the skills and the supplies to properly bandage his wounds.
He might meet American wizards who are very different from his British friends. Maybe some tough - talking Aurors who have their own way of dealing with dark magic.