Quoted By:
Magneton, Voltorb, Muk, Weezing, Porygon, Ditto, Unown, Galarian Corsola, Claydol, Banette, Bronzong, Spiritomb, Rotom, Sigilyph, Cofagrigus, Garbador, Klingklang, Chandelure, Golurk, Aegislash, Trevenant, Palossand, Silvally, Dhelmise, and Magearna are all inarguably Pokémon that would/could not exist without human design or byproducts. You could also count all of the fossil Pokémon since they would not exist in the present without human intervention. Someone else can list the Gen 8 and 9 mons that qualify.