You can also try FanFiction.net. It's one of the oldest and largest fanfiction platforms. Just use the search function and type in 'Link x Sidon' to see if there are any relevant stories. Additionally, some Zelda - specific fan communities or forums might have links to or even host their own fanfictions of this pairing.
I'm not sure specifically about a large quantity of Link x Sidon fanfiction. However, you can start by checking popular fanfiction websites like Archive of Our Own. There might be a decent number of stories featuring this pairing depending on the popularity of the characters within the fan community.
Link gay fanfic could refer to fan - created fictional stories that involve gay relationships and are somehow related to a character or concept named Link. It's a form of fanfiction within the realm of LGBT - themed fan works.
I'm not entirely sure specifically which 'gerudo link gay story' you're referring to. There could be various fan - made or niche stories within a particular game or fan community related to these characters in a gay context. Without more context, it's difficult to give a detailed account.
There were many versions of The Animal of Sidon, and the unadapted version might be:
1 The Xerofactor
2. The Cat in the Hat: Although this version also has an adapted storyline, its original author is HP Lovecraft, not Carl Aldern Rex.
3 The Secret Life of Walter Mitty: This version also has an adapted storyline, but the original author is George Orwell.
It should be noted that there may be some differences between these versions, so it is impossible to determine which version is the absolute original version and the version without adaptation.
I can't really say for sure about the common themes in 'rhett and link gay fanfic' as I haven't studied it in detail. But it could potentially include themes like friendship evolving into something more, or exploring their relationship in different settings.
There could be some 'rhett and link gay fanfic' stories floating around, but I haven't come across any in particular. Fanfic writers might create various scenarios involving these two, but it's not something that is mainstream or widely publicized. It might be more of a thing within the dedicated fan communities who have their own interpretations and creativity when it comes to these characters.