Perhaps Ash is on a quest to complete a special Pokémon research project this time. He travels through the regions, interviewing different trainers and Pokémon experts. He might get involved in some local Pokémon traditions and competitions that he hadn't experienced before. His Pikachu will surely be by his side, and they might develop new battle strategies against the diverse Pokémon they encounter.
Maybe Ash will encounter new and rare Pokémon in the regions this time. He could also meet some old friends and have epic battles together.
Pikachu, of course. It's always been Ash's closest partner.
In this fanfiction, Ash might encounter new Pokémon species in the regions he revisits. He could also form new friendships or rivalries with trainers he meets along the way.
It could be a new evil team that wants to control all the Pokémon for their own greedy purposes.
He might meet some of his old friends again, like Brock or Misty. Maybe they will join him on his new journey through the regions.
Well, it could be about Ash exploring the unique Pokémon in Alola. Maybe he discovers new forms of old Pokémon and has exciting battles with local trainers.
In an 'ash travels with gary fanfic', perhaps they are on a mission to discover some ancient Pokémon secrets. They travel through different environments, from forests to mountains. Along their journey, they meet old friends and rivals, and their relationship evolves from just being competitors to real friends who support each other in battles and other challenges.
One possible plot could be that Ash initially joins Team Rocket by mistake. He gets caught up in one of their schemes and ends up traveling with them for a while. Along the way, he tries to convince them to change their ways and use their skills for good. For example, he might show them how they could use their knowledge of Pokémon capture to help rescue Pokémon in danger instead of stealing them.
Well, perhaps in this fanfiction, Ash is on a solo quest in Sinnoh to find a way to improve his Pokémon training skills even further. He could be traveling from one town to another, meeting new trainers who give him unique tips. Along the way, he might encounter some legendary Pokémon that test his abilities in unexpected ways. This would not only be a great adventure for Ash but also a chance for him to grow as a trainer without the help of his friends.
This fanfiction sees Ash and May revisiting Kanto with a mix of nostalgia and excitement. They encounter rare Pok茅mon and have memorable battles along the way.