I think Phoebe Thunderman would be really interesting. She's a powerful superhero with a lot of determination. When she meets Henry, she could teach him some new ways to use his powers or they could learn from each other's experiences. Her sassy personality would also create some fun interactions with Henry.
Henry himself could be the most interesting. He has a unique origin story and his relationship with Captain Man is something that the Thundermans don't have. His fish - out - of - water experience when dealing with the Thundermans' family dynamic could be really engaging to read about. Also, his normal - kid - turned - superhero journey could inspire the Thundermans in different ways.
In a 'Henry Danger meets The Thundermans' fanfiction, there could be an epic team - up. The heroes from both shows might combine their powers to fight a super - villain. For example, Henry's super strength from his Kid Danger persona and the Thundermans' various powers like telekinesis could be used in a creative way to defeat an enemy that neither group could handle alone.
Jasper and Bex could be an interesting pairing. Jasper is Henry's goofy friend, and Bex is Andi's cool and adventurous sister. Imagine Jasper being in awe of Bex's confidence and her ability to get into all kinds of crazy situations. And Bex could find Jasper's naivete and clumsiness both endearing and frustrating at the same time.
Charlotte and Trip would be quite the pair. Charlotte is the smart and level - headed friend in Henry Danger. Trip is the fun - loving and somewhat scatterbrained member of the Game Shakers crew. Their personalities are so different that it would create a lot of humorous and interesting interactions. Charlotte could help Trip focus on important tasks, while Trip could introduce Charlotte to a more laid - back and creative way of thinking.
One interesting pairing could be Jasper from Henry Danger and Kenzie from Game Shakers. Jasper is often the comical sidekick in Henry Danger, and Kenzie is really smart and business - minded in Game Shakers. Their interactions would be really funny as Jasper might do some silly things that Kenzie would have to correct or find a way to work around. At the same time, Jasper could bring out a more laid - back side of Kenzie, and they could develop a unique friendship while working on whatever adventure or project comes their way in the crossover.
I think Dolohov could be the most interesting. He's a Death Eater, so he has a dark and mysterious side. Meeting Hermione could be a turning point for him. His interactions with her might make him question his loyalty to Voldemort. It would be fascinating to see his internal struggle as he deals with Hermione's goodness and intelligence.
It would probably be the Shinigami. Since it's a mysterious and powerful being from another realm, its motives and actions would be really interesting to follow.
It could be Ace. Since Ace was part of Whitebeard's crew and also Luffy's brother. His role in this meeting could be very crucial. He would be like a bridge between the two different worlds of Luffy and Whitebeard. His loyalty to Whitebeard and his love for Luffy would add a lot of emotional and interesting elements to the story.
I think Sonic himself would be the most interesting. He's so different from the Pokemon world. His super speed and his attitude would really stand out. He doesn't have the typical powers of a Pokemon, like shooting fire or electricity. His way of dealing with problems, which is mostly running really fast and spinning into things, would be really unique in the Pokemon world.
For Game Shakers, Babe and Kenzie are very popular. Babe is the confident and ambitious one, and Kenzie is the tech - genius. Fanfictions often revolve around their friendship and how they deal with the challenges of running a game - making business. Double G is also a popular character as his flamboyant and wealthy personality adds a lot of fun to the stories.
The most interesting aspect is the secrecy. Henry has to keep his identity as Kid Danger a secret. So if he's in a love relationship, he has to be careful not to let his secret slip. For example, if he's dating a girl, he might have to come up with excuses for why he disappears suddenly when there's danger in the city. Another aspect is the growth. Henry is a growing character, and as he falls in love, we can see him mature in different ways. He has to balance his superhero duties with his love life, which can lead to some really engaging storylines.