Well, in such a fanfiction, the Old Gods could have a significant impact on the magic system. They might introduce a new type of magic that is more primal and different from the traditional magic in Harry Potter. The characters would then have to adapt to this new form of power. Also, the Old Gods could bring their own rivalries and politics into the wizarding world, causing chaos or new alliances among the wizarding community.
Some characters might be in awe of the Old Gods. For example, Hermione would probably be eager to study them, their powers and their histories. Harry, on the other hand, might be more cautious, given his past experiences with powerful and mysterious entities.
It could be Zeus. He is a powerful god and might see Harry as a worthy candidate for training. He could teach Harry about leadership and power control.
The four gods in this fanfiction could be created to fit the unique world of Harry Potter. They might be named after something related to the wizarding world, like one could be the God of Magic Wands, another the God of Potions, etc. However, this is just speculation. It really depends on the creativity of the fanfiction writer. They could also be based on the four elements, with each god having control over one element, like fire, water, earth, and air, and these elements play a crucial role in the magic of the Harry Potter universe as described in the fanfiction.
There's no definitive answer. If gods were real and had an interest in human creativity, they could potentially read Harry Potter fanfiction. Harry Potter has a vast and rich universe with themes like friendship, good versus evil, and the power of love. These themes are quite universal and could be of interest to any entity, even a god, if they were to explore human - created fictional works.
Zeus could be one. He is a powerful god in Greek mythology and might be interested in Harry's story. Another could be Odin from Norse mythology, known for his wisdom. And perhaps Isis from Egyptian mythology, as she has powers related to magic and protection.
It could be the Greek gods. For example, Athena might bless him with wisdom, which would help him in his studies at Hogwarts and in outsmarting his enemies. Zeus could give him the power of lightning, a very powerful offensive ability.
In a 'gods among us' Harry Potter fanfiction, one possible plot could be that some ancient magic or a powerful spell has brought deities from another realm into Hogwarts. This would create a whole new dynamic as the students and professors deal with beings far more powerful than they are used to. Maybe the gods have their own agendas, like trying to take over the wizarding world or simply seeking a place to hide from their own problems.
It's hard to say for sure without reading it, but it could be that Harry, Hermione, and Ron still play major roles. They might be interacting with the gods in some way, either seeking their help or being caught in the middle of a conflict involving the gods.
I'm not entirely sure as it could vary greatly. It might be a fanfiction that combines the world of Harry Potter with the concept of four gods, perhaps introducing new magical elements, characters related to these gods, or new storylines that involve the powers and influence of these deities within the Harry Potter universe.