This is all about Pokemon by Game Freak and published by Nintendo and The Pokémon Company under the Pokémon media franchise.
--------------------------------------------------------------
So here are my strong shipping ones,
Cynthia x Dawn
Female OC x Cynthia's sister
--------------------------------------------------------------
Here are the ideas,
- Ash has a half-sister along with him on all the journeys, all the regions. Since Ash has his trusty Pokémon, Pikachu, and the Fem OC will always have the Alpha-sized Shinix that will evolve into Luxray.
- Abused Female OC saved by Cynthia and her sister.
- Dawn and Cynthia are mates.
- Dawn teleported into the past like in Pokémon Legends: Arceus while being two months pregnant with Cynthia's baby. Cynthia angrily yells at Arceus that she wanted Dawn back to her, so in return, she was teleported too to the past with their trusty Pokémon (all of Cynthia's Pokémons and Dawn's Empoleon and alpha-sized Luxray)