One interesting Ash x Gym Leaders fanfiction could be about Ash and Misty, a Gym Leader. In it, they might go on an adventure together outside of the usual Gym battles. Maybe they discover a new Pokemon species and have to work together to protect it. This would show their growth not just as trainers but also in their relationship.
Fanfiction.net is also a great place to look for Ash x Gym Leaders fanfiction. There are a lot of writers on there who are passionate about Pokemon. Just be sure to read the reviews and ratings of the stories to find the good ones. Sometimes, the more popular stories with high ratings tend to be really well - written.
The most popular Kalos gym leaders in fanfiction can vary. However, Korrina is often a fan favorite. Her energetic personality and her connection to Mega Evolution through her Lucario are appealing aspects. Additionally, Grant with his rock - type gym and his passion for climbing also has his own fan following in 'pokemon kalos gym leaders fanfiction' as his character can be developed in stories related to strength, determination, and the beauty of the Kalos region's rocky areas.
In this fanfiction, Ash could start by using his Pokémon knowledge to design unique battle arenas in his gym. He might also recruit his old Pokémon friends to be part of the gym staff. For example, Pikachu could help with electric - type training sessions.
One popular pairing is Ash x Misty. Misty is a Gym Leader and she has a long - standing relationship with Ash in the Pokémon series, so it's often explored in fanfiction.
One idea could be a story where a young trainer challenges all the Kalos gym leaders in a non - traditional order. Another could be a fanfiction that focuses on the backstories of the gym leaders and how they became who they are. Maybe a story about a gym leader having to deal with a strange pokemon phenomenon in their gym.
Ash might have some interesting rules in his gym. For instance, instead of the traditional win - lose system, he could have a points - based system where trainers earn points for different battle achievements. This would encourage more creative battling.
Obviously Ash is one of the most popular characters. And then there are the gym leaders like Brock, Misty (who also has gym - related aspects in some versions), and other gym leaders from different regions.
One common theme could be the power struggle between the brainwashed state and the Pokemon's natural instincts. Another might be the moral dilemma of the gym leaders who are doing the brainwashing. For example, they might be doing it for what they think is a greater good, like protecting their gym or the town, but it goes against the ethics of fair Pokemon battles.
You can try fanfiction websites like Archive of Our Own (AO3). It has a large collection of fanfictions on various topics, including Ash x Gym Leader ones. Just use the search function and type in relevant keywords.