One idea could be that the Ranma characters get transported to the Bubblegum Crisis world. Ranma could be confused by the high - tech setting and the existence of Boomers. Maybe he would initially try to use his martial arts against them, thinking they are just some strange opponents. Another plot could involve the Knight Sabers somehow getting involved in a martial arts tournament in the Ranma world. They would have to adapt to the different fighting styles and rules there.
I think Ranma and Priss would make an interesting pairing. Ranma's hot - headed and impulsive nature combined with Priss's tough and no - nonsense attitude could lead to some great interactions. They could start off as rivals, constantly trying to one - up each other in combat or in solving problems. Another interesting pairing could be Akane and Linna. Akane's strong - willed and sometimes stubborn personality could clash and also bond with Linna's more easy - going but determined nature.
One idea could be that Ranma accidentally stumbles into the world of Sailor Moon. Maybe he gets caught up in a fight against a youma and the Sailor Scouts mistake him for an enemy at first. But then they realize he has his own unique fighting skills and they team up to defeat the common foe.
The setting is a common element too. When Ranma crosses over into a different world, the new setting affects his actions and the overall story. For example, if he crosses over into a post - apocalyptic world, he has to use his martial arts in new ways to survive. And of course, the humor that is characteristic of Ranma 1/2 often gets transferred and combined with the humor (if any) of the crossed - over universe.
A third idea is that there's a mix - up with the curses in both worlds. Ranma's curse of changing into a girl when splashed with cold water gets combined with some of the magic in Highschool DxD. This creates a whole new set of problems and adventures for him as he tries to figure out how to deal with this strange new situation while also trying to keep his identity a secret from the new characters he meets.
One interesting Bubblegum Crisis fanfic could be 'The New Knights of the City'. It explores the characters in a post - apocalyptic setting with new challenges for the Knight Sabers. Another is 'Sylia's Secret Mission' which delves deeper into Sylia's character and her hidden motives in different scenarios.
There might be. However, the availability can depend on how popular this particular crossover concept is among fanfiction writers. Some of these crossovers might be quite rare, but if you explore different fanfiction communities and groups dedicated to either Ranma or Pokegirls, you might be able to find some recommendations or even direct links to such fanfictions.
One common theme is the interaction between the unique characters from Ranma and the world of Pokegirls. For example, how Ranma's martial arts skills might be used in the Pokegirls' universe. Another could be the exploration of different genders, as in Ranma's curse, in the context of Pokegirls.
How about a Ranma crossover with Harry Potter? Ranma could be a foreign exchange student at Hogwarts. His martial arts could be a form of magic in the wizarding world. Or a crossover with Fullmetal Alchemist. Ranma might get involved in the search for the Philosopher's Stone or help the Elric brothers with their alchemical problems. There are so many possibilities for Ranma crossover fanfiction.
Adventure is also a common theme. Picture Ranma traveling through the Pokemon regions, facing different Gym Leaders and trainers. He would bring his martial arts expertise into the Pokemon battles, which would be a new and exciting take on the typical Pokemon adventure.