Sometimes, a new kid in the neighborhood is paired with Kid Tony. This new character brings a fresh perspective and different skills. They might team up to compete in a local talent show or something like that. Their different personalities lead to interesting interactions and storylines.
In some fanfictions, Kid Tony is paired with an older mentor - like figure. This person teaches Kid Tony valuable life lessons and helps him develop his talents. It could be someone who has a special skill, like a master of martial arts or a great artist, and they pass on their knowledge to Kid Tony.
Pepper Potts is often paired with Dark Tony in fanfiction. Their relationship can take on a whole new dynamic as Pepper tries to deal with this darker version of Tony. Another character could be Rhodey. He might be in the story trying to bring his friend back from the dark side. And sometimes, even villains like Loki could be paired with Dark Tony in some really out - there fanfictions.
Princess Peach is often paired with Dark Mario in fanfiction. Their relationship can be very different from the normal one. Instead of being the damsel in distress, Peach might be a more complex character, perhaps even having a dark side herself and being in a sort of power struggle with Dark Mario. Another character is Luigi. He could be either trying to save his brother from the darkness or be in direct conflict with Dark Mario as he tries to protect the Mushroom Kingdom.
Peridot is a character that could be paired with Yellow Diamond in fanfiction. Since Peridot was once under Yellow Diamond's rule, there can be stories about her loyalty, her possible defection, or how Yellow Diamond views her. There could also be fanfictions that pair Yellow Diamond with other minor Gems from her colonies, exploring the power dynamics and relationships on a more micro level within the Gem society she oversees.
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.
One common pairing could be with other members of her superhero team. They might interact in a way that shows their teamwork and camaraderie. For instance, she could have a special bond with a male teammate who helps her control her powers better.
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.
Sometimes other monster characters are paired with Miia in fanfiction. For example, there could be a story where she teams up with a more powerful monster who helps her understand her own powers better. Their relationship could be one of mentorship or comradeship.
Often, her parents are main characters paired with baby Emma in fanfiction. They play a crucial role in her upbringing and protecting her from any harm.
Vlad Masters is often paired with Dark Danny. Since they both have a connection to Danny's ghostly side, they can have some really intense interactions. It could be a power struggle between them or an alliance of sorts.
Sasuke is often paired with Naruto Fernandes in fanfiction. Their complex relationship in the original Naruto series lends itself well to new and interesting storylines in fanfiction. They could be on a new mission together, or perhaps have a different kind of rivalry that goes beyond the typical power struggle.