No. The official 'Harry Potter' story by J.K. Rowling doesn't have any such plot where Dumbledore sells Harry fanfic. It's likely a fan - created or very non - canonical idea.
I'm quite sure Harry Potter doesn't sell gold fanfic. The Harry Potter series is a fictional story mainly about magic, friendship, and the battle between good and evil. Fanfic related to it is often the creative work of fans, not something that the original concept would sell as 'gold fanfic'.
Well, in the context of Harry Potter, if we talk about 'gold fanfic', it might be a term used by fans to describe fanfiction that they consider to be of exceptional quality. It could have really well - developed characters, an engaging plot, and be really true to the spirit of the Harry Potter series. But it's not something that has a formal meaning within the official Harry Potter lore. It's more of a fan - created idea to distinguish great fanfics from the rest.
One interesting 'Harry Potter Gold Fanfic' story could be about a hidden treasure within Hogwarts that is related to the Founders. It might involve the characters going on a magical scavenger hunt, using spells and clues left behind. Another could be a story where Harry discovers a new form of magic related to gold that gives him an edge in the fight against Voldemort. There could also be a fanfic where the Weasley twins use their entrepreneurial skills to create a gold - making business using magic in a way that doesn't break the wizarding laws.
The popularity of 'harry potter sells the basilisk fanfiction' is likely to be limited. In the large landscape of Harry Potter fanfiction, most stories tend to focus on more traditional themes like the battles against Voldemort, the relationships between the characters, or the exploration of different magical spells and creatures in a more conventional way. This concept of selling a basilisk by Harry Potter is not something that immediately comes to mind for most fans when they think of Harry Potter fanfiction, so it may not have a large following.
In this 'harry potter sells the basilisk fanfiction', it may start with Harry Potter coming across an opportunity. The basilisk, being a powerful and feared creature, could be a valuable commodity in the underground magical trade. Harry, who is always full of surprises, might decide to sell it to the right buyer. He would have to be very careful as there are many dark wizards who would love to get their hands on a basilisk. This could lead to a series of adventures where he has to outwit the bad guys while also making sure the basilisk is sold in a proper and ethical way within the context of the magical world.
You can try some popular fanfiction websites like FanFiction.net or Archive of Our Own (AO3). These platforms have a large collection of 'Harry Potter' fanfics, and you can use the search function to specifically look for ones related to 'gold'. Just type in 'Harry Potter Gold Fanfic' in the search bar, and you should get a list of relevant stories.
It could be a very strange or creative statement. Maybe it implies that in some fictional or fan - created scenario, Dumbledore is involved in selling fanfiction related to Harry. But in the original 'Harry Potter' universe, this is completely uncanonical.
Well, it could be a really interesting fanfic where Harry, perhaps in some alternate universe or post - Hogwarts scenario, decides to sell the basilisk. Maybe he discovers some unique value in it, like its venom is highly sought after for potions or its hide has some magical property that could be sold. It might also be a comical situation where he's just trying to get rid of the dangerous basilisk and make some money at the same time.
Perhaps Vernon Dursley sells Harry fanfic to get back at the wizarding world that he despises. He might think that by spreading false or embarrassing stories about Harry in fanfic form, he can somehow undermine the reputation of wizards. For example, he could write fanfics where Harry is shown as a bumbling fool, completely different from the real heroic Harry. However, this backfires as the wizarding world sees it as a comical attempt by a Muggle and it actually makes Harry more popular as they rally around to defend him.