Another place to look for it is Archive of Our Own (AO3). It's known for its wide range of fanfiction, and there are quite a few 'sonic x rarity' fanfics there. You can also filter the results by rating, length, and other criteria to find the perfect one for you.
You can look for it on major fanfic platforms such as Wattpad. There are a large number of fanfics there, and you might be lucky to find ones related to 'rarity x elusive'.
Some dedicated My Little Pony fan communities might also be a great place to find such fanfics. For example, certain forums where fans gather to discuss and share their works. They might have threads or sections dedicated to fanfic sharing, and you can explore there for Fluttershy x Rarity stories.
Archive of Our Own (AO3) is also a great place to look. It has a well - organized tagging system. So, if you search for 'sonic x tikal' under the Sonic the Hedgehog fandom tag, you're likely to find some interesting fanfics.
Some gaming forums might also be a good place to look for 'sonic x mario fanfic'. Gamers often share their own creative works or know where to find them. For example, the official Sonic and Mario game forums may have links or threads dedicated to fanfics.
Archive of Our Own (AO3) is another great place. It has a large collection of fanfics, and the tagging system makes it simple to locate 'amy x sonic fanfic'. Just type in the relevant tags, and you'll get a list of fics to choose from.
Some Sonic - focused forums also host 'knuckles x sonic fanfic'. For example, Sonic Stadium Forums might have some really good ones shared by fans. These forums are a great place to interact with other Sonic fans as well, and you might discover some hidden gems of fanfic that you wouldn't find elsewhere.
Another option is Wattpad. While it has a wide range of content, you can still find some interesting 'sonic x lancelot fanfic'. However, be aware that the quality can vary a lot on Wattpad, so you may need to do some more digging compared to the other two sites.
Some Sonic fan communities on social media platforms might also be a good source. For example, Sonic - themed groups on Facebook or Reddit. Members often share or recommend interesting fanfics, including those about sonic female tails x sonic.
A popular 'sonic x rarity fanfic' is 'The Sonic - Rarity Bond'. This fanfic delves deep into the relationship between Sonic and Rarity. It starts with a simple encounter but then develops into a story about how they learn from each other and grow together. The descriptions of the settings are really vivid, making you feel like you're right there with them.
You can start by looking on fanfiction.net. It has a large collection of Sonic - related fanfics, including those about Sonic and female Tails. Just use the search bar and type in the relevant keywords.