My favourite Gen 8 Pokemon are Inteleon, Corviknight, Centiskorch, Toxtricity, Grapploct, Grimmsnarl, Eldegoss, Flapple, Coalossal, Copperajah, Polteageist, Alcremie, Barraskewda, Perrserker, and Dragapult.
Aside from them, I also like Cinderace, Drednaw, Orbeetle, Hatterene, Sandaconda, Eiscue, Cursola, Sirfetch'd, Obstagoon, Runerigus, Duraludon, Dracozolt, Eternatus, Zarude, Regieleki, and Regidraco.