It could be an original character created specifically for the fanfiction. Maybe a powerful wizard king from a far - off land who has heard of Harry's deeds and is intrigued by his power and courage.
It might even be a dark wizard who has disguised himself as a king. He could be trying to manipulate Harry into joining his side, thinking that Harry's skills would be useful for his evil schemes. This would add a lot of mystery and danger to the fanfiction.
Well, without reading the specific fanfiction, it's hard to tell exactly who the king is. It could be an original character created by the author, or perhaps it's a character from another fictional universe that the author has incorporated into the Harry Potter world for this unique plotline.
Another development could be that the king's courtship is part of a larger political plot. Harry discovers that the king has ulterior motives, like using Harry to gain influence over the wizarding world. Harry then has to figure out how to expose the king's true intentions without causing chaos in the magical community.
Hermione could be an interesting choice to court Harry in fanfiction. She already has a deep connection with him, and a fanfiction could explore a more romantic side of their relationship where Hermione actively courts Harry, perhaps using her intelligence and magical skills to show her affection in new and creative ways.
One possible plot development could be that Harry is initially confused and resistant to the king's advances. He might be more focused on his own battles against Voldemort or his studies at Hogwarts, and this new situation throws him off balance.
It could be an entirely new character created just for the fanfiction. Maybe a long - lost wizard who was turned into a vampire and then gained enough power to become a king among them.
It could be a former Hogwarts student who was expelled for some misunderstood reason. This person, full of bitterness, decides to make a name for himself in the seedy underbelly of the wizarding world and becomes the 'street king'.
A less obvious candidate could be a corrupted Dumbledore. Imagine if he was swayed by the allure of absolute power and became the dark king. It would be a huge twist as he is seen as a symbol of good in the original books.
Perhaps the lost king is a young wizard who was hidden away as a baby because of a dark prophecy. He has the potential to be a great and just ruler. His identity has been kept secret all these years. Harry Potter, being the hero he is, gets involved in the mystery when he notices some strange magical happenings that seem to be related to this lost king. As he digs deeper, he uncovers a web of secrets, spells, and hidden motives among different wizarding factions regarding this lost king.
Perhaps it could be a king from a fictional, magical kingdom that has some connection to the wizarding world. For example, a king from a neighboring magical land who has always been curious about Hogwarts and the magic that Harry wields. He and Harry could meet during some diplomatic mission between their two realms.
It could be other members of the royal family who see Harry as a threat to their power or position. They might try to undermine him and prevent him from claiming his rightful place as king.