Pokémon has worked hard for more than 25 years to become the highest-grossing media franchise of all-time and its ongoing anime series remains one of its most important pillars. Pokémon’s anime has produced more than 1200 episodes and two-dozen feature films that include plenty of changes since their start, but consistently follow Ash and Pikachu as their guiding light.
Source:https://www.cbr.com/pokemon-characters-who-should-replace-ash/