Misty is another character that can be paired with Brock. Their dynamic in the show was quite interesting, and in fanfiction, it could be developed further. For example, they might have an adventure where they have to rely on each other's skills more than ever before.
In some fanfictions, Harley could be paired with new original characters created by the author. These new characters could be trainers who are either inspired by Harley or are trying to stop his more devious plans in the Pokemon contest circuit.
Often, Red or Ash are paired with Bill in fanfiction. Since they are well - known and experienced trainers, their interactions with Bill, who is more of a scientist - type character, can lead to really interesting storylines. For example, they could help Bill test out his new Pokemon - related inventions.
Often, her Pokemon are main characters alongside her. For example, her cute and powerful Eevee might be a central focus, showing their interactions and how they grow together.
Often, Tangrowth is paired with trainers. A young and determined trainer who discovers Tangrowth's potential and trains it to become stronger.
In some fanfictions, Dawn could also be paired with Sir Aaron. Dawn is a strong trainer in her own right. Her presence with Sir Aaron could lead to stories about her getting mentored by him or them going on an adventure together to discover new Pokemon species.
Often, her brothers, Gary and Ash's rival Gary, are paired with her in fanfictions. Their family dynamic can add a lot of interesting plot points.
The main characters are, as the title suggests, Brock and Nurse Joy. Brock is a Pokémon trainer with a deep knowledge of Pokémon, especially in terms of their care and training. Nurse Joy is known for her skills in taking care of injured and sick Pokémon at the Pokémon Centers.
Often, a young and brave hero might be paired with Lady Black. This hero could be someone who is still learning about their powers and looks up to Lady Black for guidance.
In some Black Queen fanfiction, the Prince of Shadows is frequently paired with her. Their relationship can be complex, perhaps they are rivals at first but then find common ground. There's also the Enchantress. Since both are female characters with great power, their interactions can range from intense competition to unexpected alliances. And don't forget the Lone Wanderer, who might be drawn into the Black Queen's orbit and become an important part of her story.
One character often paired with Tyrian could be Cinder. Since they are both villains in RWBY, they might be grouped together in fanfiction to carry out some devious plans. Their combined powers and personalities can create some interesting dynamics.