Fire-Type Pokémon have been around since the very first Pokémon games as one of the core elemental types. This Type has contained some of the most popular species in the franchise, with box-art Pokémon like Charizard. While these Pokémon are susceptible to different types like Water and Rock, they've remained one of the strongest types in the game.
Source:https://www.cbr.com/most-powerful-fire-type-pokemon/