Well, he might finally have some privacy to study magic without distractions. He could decorate the room with his favorite Quidditch posters and pictures of his friends and family.
In this fanfic, Harry getting his own room at school could lead to him having a secret place to practice new spells. Maybe he discovers a hidden passage or something special in his room that helps him in his adventures at Hogwarts. Also, he can have his own space to keep his magical items and not worry about others borrowing them without permission.
Harry's life would be significantly different. He could store his belongings more safely and privately. In the past, he had to worry about things getting lost or borrowed without his knowledge in the shared dorm. Now, he can keep his Invisibility Cloak, his Firebolt, and other precious items in his own room. He might also develop a stronger sense of self - reliance as he takes care of his own space. Moreover, having his own room could make him feel more special and important, which could boost his confidence in dealing with the challenges at Hogwarts, whether it's facing Voldemort or getting good grades in his classes.
Well, perhaps Harry's inheritance includes a hidden library filled with ancient and powerful magic spells. This could lead him to become even more powerful and help him defeat the remaining dark forces. He could also share this knowledge with his friends, making them stronger as well.
They could discover a hidden part of the Room of Requirement that no one else has found. It could be filled with ancient magic that only they can access. This discovery could lead to new adventures and challenges for them.
In the 'harry gets a check up fanfic', it's likely that there are some interesting interactions between Harry and the medical staff. For example, the doctor might be a bit of a quirky character who makes the check - up process more entertaining than usual. Harry might also meet other patients in the waiting room and have some small talk with them. This could lead to new friendships or just some funny exchanges. And who knows, there could be a plot twist where the check - up reveals something unexpected about Harry's health or his magical abilities.
In this fanfic, perhaps Harry discovers a hidden health issue. For example, he might find out he has a rare magical malady that only a few wizards have ever had. This could lead to a whole new adventure as he searches for a cure.
Well, perhaps Harry decides to focus more on his own personal growth and magical skills. He might start exploring magic in his own unique way, away from the expectations of others.
In fanfictions about Harry getting his creature inheritance, he may inherit from a magical creature like a dragon. This could endow him with incredible strength and the ability to breathe fire (in a more magical and less destructive way, perhaps). It could also make him more resistant to heat and fire - spells related to fire might not harm him as much. This new inheritance would likely change his relationships too. His friends might be in awe of his new powers, and his enemies would be more cautious around him.
Well, in this fanfic, the setting of getting a flu shot could be really interesting. It could be at a Muggle hospital that Harry and his friends visit secretly. The nurse giving the shot might be completely unaware that she's dealing with a famous wizard. Harry might be thinking about all the potions he's had at Hogwarts and comparing them to this strange Muggle medicine. He might even wonder if there's a way to make a potion that works like a flu shot so that wizards don't have to go through this somewhat scary process.
The custom wand in the fanfic could lead to a whole new set of adventures for Harry. It could be made from a rare material that attracts the attention of dark wizards who want to steal it. This would put Harry in a dangerous situation where he has to protect his wand and himself. The wand might also have a mind of its own and guide Harry to places he never thought of going, like hidden chambers in Hogwarts or ancient magical sites outside of the school.
Well, he might discover new and unexpected magical abilities. A different wand could have different properties and react differently to spells. For example, if it was made of a more rare wood or had a different core, it could enhance certain types of magic that his original wand didn't. Maybe it would make his Transfiguration spells more powerful or his defensive spells more effective.