Below are the locations of the alpha Pokemon found in Pokemon Legends: Arceus! Please note that you may see other alpha Pokemon spawn in the world, however, the below are usually found at these locations!
Alakazam (Level 60)
Obsidian Fieldlands – Sandgem Flats
Ambipom (Level 50)
Cobalt Coastlands – Narrow path from Aipom Hill to Hideaway Bay
Bibarel (Level 16)
Obsidian Fieldlands – Southern Tidewater Dam
Blissey (Level 62)
Obsidian Fieldlands – Above Oreburrow Tunnel
Chansey (Level 51)
Cobalt Coastlands – Tombolo Walk
Crobat (Level 60)
Coronet Highlands – Wayward Cave
Drapion (Level 45)
Cobalt Coastlands – Ginkgo Landing
Electivire (Level 69)
Coronet Highlands – Cloudcap Pass
Floatzel (Level 31)
Obsidian Fieldlands – North of Deertrack Heights along the river
Gardevoir (Level 70)
Alabaster Icelands – Heart’s Crag
Gastrodon (Level 61)
Cobalt Coastlands – On an island northwest of Seagrass Haven
Golbat (Level 35)
Obsidian Fieldlands – South of Oreburrow Tunnel
Golduck (Level 50)
Cobalt Coastlands – Bathers’ Lagoon
Graveler (Level 30)
Obsidian Fieldlands – Directly east of Worn Bridge
Gyarados (Level 60)
Obsidian Fieldlands – Lake Verity
Heracross (Level 45)
Obsidian Fieldlands – Grueling Grove
Hippowdon (Level 46)
Crimson Mirelands – Sludge Mound
Honchkrow (Level 55)
Crimson Mirelands – Cloudpool Ridge at night only
Infernape (Level 65)
Obsidian Fieldlands – Ramanas Island
Kricketune (Level 30)
Obsidian Fieldlands – Northern Tidewater Dam
Lickilicky (Level 52)
Crimson Mirelands – Shrouded Ruins
Lopunny (Level 40)
Obsidian Fieldlands – Southwestern part of The Heartwood along the river
Lucario (Level 70)
Alabaster Icelands – Icebound Falls
Lumineon (Level 60)
Cobalt Coastlands – In the water near the southern part of Seagrass Haven
Luxio (Level 40)
Obsidian Fieldlands – Southern Floaro Gardens
Magikarp (Level 28)
Obsidian Fieldlands – Along the shoreline north of Obsidian Falls
Octillery (Level 46)
Cobalt Coastlands – Castaway Shore
Pachirisu (Level 40)
Crimson Mirelands – Southwestern Gapejaw Bog
Parasect (Level 30)
Obsidian Fieldlands – Northeastern Nature’s Pantry
Purugly (Level 45)
Cobalt Coastlands – Veilstone Cape
Roserade (Level 50)
Crimson Mirelands – Central Cloudpool Ridge
Rhyhorn (Level 45)
Crimson Mirelands – At the “Heath” in Diamond Heath on the map
Sliggoo (Level 50)
Crimson Mirelands – Eastern Holm of Trials
Snorlax (Level 45)
Obsidian Fieldlands – South of Aspiration Hill
Skuntank (Level 45)
Crimson Mirelands – Scarlet Bog
Stantler (Level 42)
Obsidian Fieldlands – Deertrack Heights
Steelix (Level 60)
Coronet Highlands – Celestica Trail
Tangrowth (Level 45)
Crimson Mirelands – South of Solaceon Ruins along the river
Tentacruel (Level 50)
Cobalt Coastlands – In the water between Firespit Island and Lunker’s Lair
Torterra (Level 65)
Crimson Mirelands – Central Holm of Trials
Toxicroak (Level 47)
Crimson Mirelands – Northwestern Holm of Trials
Ursaring (Level 41)
Crimson Mirelands – Southern Ursa’s Ring
Ursaring (Level 55)
Crimson Mirelands – Western Gapejaw Bog
Vespiquen (Level 61)
Crimson Mirelands – Northern Cottonsedge Prairie
Walrein (Level 50)
Cobalt Coastlands – At night on the beach just south of the Ginkgo Landing map marker
