Pokémon Legends: Z-A has an incredibly large roster of Pokémon, but not every player will get to see them all during a playthrough. Most Pokémon in the game will be overlooked, which is a shame, as many can be strong additions to your team without being a traditional pick. In fact, many of your favorite pocket monsters might be ones you just haven't found yet.
While many new Pokémon will release with the Mega Dimensions DLC for Legends: Z-A , there are plenty in the game already to find. Like many other Pokémon games, some Pokémon are overlooked because they are only strong at the early stages of your journey , with much better options becoming available later. That being said, some Pokémon fill a specific niche, only being noticed by those who actively search for them.
Pang

Screen Rant

Cowboy State Daily
CBS News