In the fanfiction community, this is likely not a widely popular concept. 'Harry Potter' fans usually focus on the magical elements, characters like Harry, Hermione, and Ron, and the various plotlines within the wizarding world. 'Goa'uld' symbiants are from a completely different genre. A fanfiction that combines these two would be quite out of the ordinary and would appeal only to a select few who enjoy exploring such strange crossovers.
One plotline could be that the goa'uld symbiants are discovered in the Forbidden Forest. Harry and his friends, out of curiosity, start to investigate. As they learn more about the symbiants, they find out that there is a prophecy that links the fate of the wizarding world with the goa'uld. Harry then has to figure out how to prevent a catastrophe that would occur if the wrong goa'uld gets too much power in the wizarding world. This could involve traveling to different magical and goa'uld - related places, making new allies and enemies, and using both his magical skills and the new knowledge about the symbiants to save the day.
I'm not sure it's extremely popular. While both 'Harry Potter' and 'Black Panther' have huge fanbases, combining them in this way might be a niche idea. There are so many different fanfiction concepts out there that it could easily get lost among the more common pairings and storylines within each individual fandom.
I'm not sure if it's extremely popular. Fanfiction often combines different universes in unique ways, but this particular combination might be a niche idea. It depends on the overlap between Harry Potter and Attack on Titan fandoms.
It could be popular among a specific group of fans who are into both the Harry Potter universe and whatever the Lord Cahill concept is. However, without more research, it's hard to say if it's well - known in general. Fanfiction can be very diverse, and some ideas are only known to small, dedicated groups.
I'm not sure if it's a particularly popular concept. There are so many different and often niche fanfiction ideas out there. It could be something very specific to a small group of fans who like to combine elements from 'Harry Potter' and 'Inuyasha' in a rather unusual way, perhaps imagining Harry Potter as a pup in the context of 'Inuyasha' for some creative or comical reasons.
It depends on how you define 'popular'. There are so many different types of fanfiction in the Harry Potter universe. Some concepts gain a lot of traction and are shared widely among fans, but others remain more niche. This 'harry potter is a ghoul fanfiction' might be one of those that only a small subset of fans who are particularly interested in unique or darker interpretations are aware of.
It might not be that well - known in the broader fanfiction community. While the Harry Potter fandom is huge, the idea of Harry as an assassin is a rather specific and perhaps darker take on the character. Most of the more popular fanfics tend to focus on things like filling in plot holes from the original series, exploring different character relationships, or putting the characters in new magical situations. This 'assassin' concept may be known among those who seek out more alternative or edgy fanfics, but not to the general Harry Potter fanfic reader.
One possible plot could be that in Goa, there is a hidden magical community. The Uld (assuming it's some sort of magical entity or group) could be hosting an event. Harry Potter and his friends arrive there and discover a new kind of magic that is unique to this place. They might have to face challenges related to local magic traditions and make new allies among the Goa wizards.
In Goa'uld Harry Potter fanfiction, there could be a concept where the Goa'uld symbiotes possess magical creatures in the Harry Potter world. Imagine a Goa'uld in a hippogriff or a dragon. This would not only change the nature of those creatures but also create a whole new set of challenges for the characters in the story. The Goa'uld's hierarchical society might also clash with the relatively egalitarian society of the wizards, leading to all sorts of power struggles and political intrigue.
Obviously, Harry Potter himself could be a main character. He could be drawn to Goa Uld because of some mysterious happenings that seem to be related to Voldemort or some other dark force.