https://www.cpokemon.com/seccion/herramientas/tipos/stats/

#1 pick for each type:

Grass: Sceptile
Fire: Charizard
Water: Greninja
Normal: Eevee
Electric: Luxray
Psychic: Espeon
Fighting: Lucario
Rock: Tyranitar
Ground: Flygon
Flying: Staraptor
Bug: Scizor
Poison: Gengar
Dark: Umbreon
Ghost: Gengar
Ice: Alolan Ninetales
Steel: Metagross
Dragon: Dragonite
Fairy: Sylveon

Gengar is so based that he gets #1 twice