Some Reddit communities dedicated to Marvel fanfiction might also be a good source. For example, r/MarvelFanfiction. You can post a request for Hela crossover fanfictions there, and the community members might be able to point you in the right direction or even share their own creations.
One interesting Hela crossover fanfiction could be a Hela and Thor in an alternate universe where they have to team up against a common enemy. In this story, Hela's power and Thor's strength combine in unexpected ways.
Hela would likely be more powerful. She is a goddess in the Marvel universe with superhuman strength, the ability to summon weapons, and immortality. Harry Potter, while very powerful in the wizarding world, has limits to his magic. His spells and abilities are mainly within the realm of magic that wizards understand. Hela's powers seem more raw and on a much larger scale compared to Harry's.
When it comes to Iron Man, Hela would be intrigued by his technology. She might initially dismiss it as inferior to Asgardian magic, but as she sees the power and versatility of his suits, she could start to collaborate with him. Iron Man, on the other hand, would be cautious but also curious about Hela's powers and would want to study them if possible.
One great Percy Jackson Hela fanfiction is 'The Meeting of Demigods and Goddess'. It weaves an interesting story where Percy and his friends encounter Hela in a modern - day setting. It's full of action and adventure as they try to figure out her motives.
One great Loki x Hela fanfiction is 'A Meeting of Gods' which delves into their complex relationship. It shows how their different powers and personalities interact in a really interesting way. The author does a great job of creating a believable scenario where they have to team up against a common enemy.
I'm not sure specifically as there could be many different takes in such a fanfiction. It might be a creative story where Naruto is somehow related to Hela, perhaps exploring a new backstory for Naruto that involves elements from the world of Hela.
Redemption is also a theme. Hela is often seen as a villain, and Loki has his own morally ambiguous actions. Fanfictions sometimes focus on one or both of them seeking redemption. They might help each other on this journey, like Loki guiding Hela to see a different path, or Hela teaching Loki about true power and its responsibilities.
In an 'Avengers meet Hela' fanfiction, there could be an epic battle. The Avengers, with their diverse powers, would face off against Hela, the powerful Asgardian goddess. Iron Man might use his high - tech suits to try and fend off her attacks, while Thor could be conflicted, as she is related to him. Captain America would lead the team with his strategic mind, and they might eventually find a way to either defeat Hela or come to some sort of truce.
In a fanfiction where Loki meets Hela, their interaction would be complex. At first, Loki would be cautious, as he knows Hela's reputation. Hela would be dismissive of Loki, seeing him as a lesser being. But as they start to talk, Loki might share some of his experiences of being ostracized in Asgard. This could pique Hela's interest, as she herself was banished. They might start to exchange stories, and slowly a relationship of mutual understanding could develop. But it would always be a fragile relationship, with Hela's power and Loki's deviousness creating an undercurrent of unease.
Yes, there might be some fanfiction exploring such an unusual pairing. Fanfiction writers often come up with creative and unexpected relationships. However, this would be a very unique crossover as Harry Potter is from the wizarding world created by J.K. Rowling and Hela is from the Marvel universe.