Walk: Area Zero
Its base catch rate is 45 out of 255 (higher is easier); the catch rate calculator works out your odds with each ball. For the look, the best colour match is Repeat Ball, Level Ball or Safari Ball.
Evolution: Girafarig → Farigiraf (Know Twin Beam).
Farigiraf in every game · Pokémon Scarlet & Violet interactive map (Paldea)