Well, FanFiction.net is also a good place to look for 'the thing fanfiction'. There are many users who post their works there. However, the quality can be a bit inconsistent, so you might need to do some sifting through the stories. Another option could be Tumblr. Some bloggers might share or write 'The Thing' fanfiction on their blogs.
Some Reddit communities dedicated to Vikings might also have links or discussions about fanfiction. For example, the r/vikingsTV subreddit could be a great starting point. Members often share their favorite fanfictions or ask for recommendations.
Some Reddit communities dedicated to Swamp Thing or DC Comics in general might also have discussions or links to Abby Arcane and Swamp Thing fanfiction. You can join these communities and ask for recommendations. Just make sure to follow the community rules while you're there.
There might be such fanfictions out there. You could start by looking on popular fanfiction websites like Archive of Our Own (AO3) or Fanfiction.net. However, the idea of Athena killing Percy is quite dark and might not be very common. You'll need to use the search functions on these sites and try different combinations of words related to 'Athena', 'Percy', and 'killing' to see if you can find any relevant stories.
Online platforms are also a great place to find it. Websites like Amazon or eBay often have a wide range of graphic novels available for purchase. Some digital comic platforms might also have it if you prefer to read it digitally.
Social media platforms dedicated to specific fandoms often have recommendations for good fanfiction. Also, some authors have their own blogs or websites where they post their fanfics. Another option is to join fanfiction forums or groups where people share and discuss their favorite works.
Archive of Our Own (AO3) is also a great place to look. It has a well - organized tagging system. So, you can search for 'That Thing You Do' and browse through the available fan fictions. The community there is also quite active, so there might be new and interesting fan fictions regularly.
You can try looking for it in local comic book stores. They usually have a good selection of graphic novels, including those from Dark Horse.
You can start by looking on Archive of Our Own (AO3). It has a large collection of fanfiction from various fandoms, including Good Omens 2. The site has a good search function that allows you to filter by tags, such as character names, relationships, and specific plot elements.
Another place to look could be Tumblr. There are many fan communities on Tumblr that share and discuss 'The Good Fight' fanfiction. You can follow relevant tags or search for specific topics related to the show to discover some great fan - created stories.
Another option is to check out specific 'Harry Potter' fanfiction forums. These are places where fans gather to discuss and share their fan - made stories. Some of these forums might have their own curated collections of the best 'i potter fanfiction' based on the votes or reviews of the members.