Yes, there are some out there. You can try searching on popular fanfiction websites like Archive of Our Own. Just type in 'Harry is God Supernatural' in the search bar and you'll likely find a variety of stories with different takes on the concept.
Another theme is redemption. Harry, being in a position of god - like power, might try to redeem characters who have made mistakes in the Supernatural universe. It's about using his power for good and changing the fates of those who seem doomed. Also, there can be a theme of discovery, where Harry discovers new aspects of the Supernatural world that even the long - time inhabitants don't know about because of his unique perspective as a god.
In some fanfiction, Harry Potter might be placed in the Supernatural universe where the concept of 'God' exists. God in Supernatural is often portrayed as a very powerful being. Harry could be made to interact with this idea of God. For example, his magic might be seen as a new form of power in the Supernatural world and God could either be intrigued or threatened by it. Another way could be that Harry is on a quest related to his own magic and crosses paths with the overarching power of God in the Supernatural realm.
Another theme is the clash of different worlds. When you combine the Harry Potter world with supernatural and god - like elements, there's always a bit of a culture shock. Characters from different backgrounds have to learn to work together, like the wizards and the angels or demons from Supernatural. This theme of cooperation or conflict between different realms is quite prevalent.
Well, one interesting aspect could be the unique blend of the Harry Potter universe with supernatural elements. It might bring new interpretations to the well - known characters of Harry Potter, like seeing them in a more otherworldly context. Maybe Harry could have god - like powers that change the whole dynamic of his battles against Voldemort. Another aspect could be the crossovers it might introduce. For example, characters from the Supernatural series could interact with those from Harry Potter in unexpected ways, creating fresh storylines.
Another great one is 'The Godly Intervention in Potterverse'. This story focuses on how a powerful god - like entity intervenes in the events of the Harry Potter series. It adds a whole new layer of intrigue as the characters have to deal with this otherworldly influence while also dealing with their own problems like the fight against the Death Eaters and the secrets of Hogwarts.
The main difference is the power level of Harry. In the original stories, Harry is a powerful wizard but still has limitations. In this fanfiction, as a god, he has almost unlimited power. Also, the scope of the story may be much broader. While the original Harry Potter stories are mainly set in the wizarding world, this fanfic might introduce elements from the supernatural realm that can take the story to different dimensions or universes.
A lot of these fanfictions are on various fanfiction platforms. Some focus on the moral and ethical questions that arise when Harry Potter's rather different view of magic and good vs. evil meets the more complex and often grey - area morality of the Supernatural world with the all - powerful God figure in the mix. They can be really thought - provoking reads for fans of both franchises.
In fanfiction, God can be characterized as more fallible. He might be shown as having made mistakes in dealing with Lucifer. Lucifer, on the other hand, could be seen as more sympathetic. For instance, he might have been pushed to rebel because of God's actions.
In the realm of 'god supernatural fanfiction', 'God's Hand in the Supernatural' stands out. It shows how the hand of a god can shape the fates of the various supernatural entities. Additionally, 'Divinity's Reach' is a must - read. It's about how the gods expand their influence in a world filled with werewolves, vampires and other supernatural beings.