Yes, there are quite a few out there. Some focus on the unique combination of a female Harry in the KHR universe as the Cloud Arcobaleno. They often explore her new powers and how she interacts with the existing characters in the KHR world. You can find them on popular fanfiction websites by using relevant search terms.
One common theme is identity. Since it's a female Harry in a different world as a special being (Cloud Arcobaleno), she often has to figure out who she is now. Another theme is friendship. She forms new relationships with the characters in the KHR world. And power struggles are also common as she has to deal with her new powers as the Arcobaleno.
Well, since it's a fanfiction, it could be about a lot of things. Maybe the fem Harry has some special powers or abilities related to being the Sky Arcobaleno. It could be a story of self - discovery for her, as she navigates this new identity in a fictional universe. She might meet other characters from the related universe and have all kinds of interactions, from friendly to hostile, and the story could be about how she overcomes all the difficulties that come her way.
One idea could be to create an OC who has a unique power related to the Arcobaleno curse. For example, an OC that can temporarily nullify the curse's effects on the Arcobaleno for a short period. This would add an interesting dynamic as the OC would be both a help and a potential target.
You can try searching for it on popular fanfiction websites such as Archive of Our Own (AO3) or FanFiction.net. These platforms have a vast collection of fanfictions, and there's a good chance you'll find it there.
The term 'khr cloud oc fanfiction' is a bit of a mystery without more context. However, generally speaking, if 'khr' is a known entity in a fandom, the 'cloud' might be a metaphorical or literal element in the story world. And the 'oc' indicates that fans are creating their own characters. So this fanfiction could be a collection of stories where fans use their own characters in the context of 'khr' and the cloud - related aspects to tell unique tales, perhaps of heroism, mystery, or love within that specific fictional universe.
I'm not entirely sure specifically as I haven't read that particular fanfiction. But it might be about a female version of Harry Potter having some sort of adventure or story related to clouds. Maybe it could be a magical story where the fem Harry Potter has an affinity for cloud - related magic or lives in a world where clouds play a significant role in the plot.
Develop a really unique OC. Give them distinct personality traits, like being overly curious but also extremely cautious. Also, a unique backstory that ties into the world of the Arcobaleno in an unexpected way.
You could try looking on fanfiction websites like Archive of Our Own. There are often some great 'Fem Skull' KHR fanfictions there. Just search for 'KHR Fem Skull' in the search bar and you'll get a list of relevant stories.
The cloud in 'fem harry potter is a cloud fanfiction' might hold great significance. It could be the key to a whole new realm of magic in the story. For instance, the clouds could be made of a special magical substance that only the fem Harry Potter can interact with. It could also be a form of protection or a barrier in the story. For example, a powerful spell might be hidden within the clouds, and the fem Harry Potter has to figure out how to access it. Moreover, the cloud could be a metaphor for the character's dreams or aspirations, as clouds are often associated with the sky, which represents limitless possibilities.