It's fairly common. Fans often look for more content related to their favorite shows. Since 'Attack on Titan' has a large and passionate fan base, there are a lot of fanfics available. 'Aot' fans might watch (read) these fanfics to explore different scenarios that the official story didn't cover. For example, they might want to see how a certain character would react in a different situation or what would happen if a major plot event had a different outcome.
The ending of the AOT manga was quite controversial among fans. Some were satisfied, while others felt it was rushed or left many questions unanswered.
There could be various fanfictions. Maybe some that focus on alternative endings, like ones where certain characters survive who didn't in the original. For example, a fanfiction where Erwin survives and leads the Scouts in a different way.
Sometimes, other trainers or characters from the Pokemon world might make appearances in the fanfiction. They could be friends, rivals, or mentors to Roark and Gardenia. For example, another trainer might challenge them to a double battle, or an older and more experienced trainer could give them advice on how to better train their pokemon.
It could mean that a person who is a fan of 'Attack on Titan' (AOT) is reading or watching fan - created fictional works related to AOT. Maybe they are interested in seeing different interpretations or storylines that fans have come up with.
One way is to check on popular fanfiction websites. Look for ones with high ratings and a lot of reviews. For example, Archive of Our Own (AO3) has a large collection of AOT fanfictions. You can search for the most popular ones there.
Finding Frances O'Roark Dowell's new novel can be done through several channels. Local independent bookstores are great as they may have a curated selection and can order the book if they don't have it in stock. Online platforms such as Book Depository are also worth considering, especially if you're looking for international shipping options. Another option is to follow the author on social media platforms. She may announce where her new novel can be found, or there may be fan groups discussing the best places to get it.
In some fanfictions, there could be a story about their friendship development. Maybe they start off as rivals, with Roark being more focused on the strength of his pokemon and Gardenia on the unique abilities of hers. But as they interact more, they realize they can learn from each other. They could exchange training techniques and even help each other in pokemon battles against common enemies.