Where have you guys been EV training with the new SOS method? I've been using these areas: HP: Route 1: Caterpie, Grimer (Trainer School), Munchlax (requires Tauros) Hau'oli City: Grimer Route 2: Makuhita (Usually the first patch of grass will have a rustling patch, and it's normally Makuhita) Malie City: Grimer Any of these will work. I recommend Makuhita or Grimer. Attack: Route 2: Growlithe Route 3: Mankey, Rufflet (Sun Version) Ten Carat Hill: Machop, Rockruff Route 4: Lilipup, Mudbray, Pikipek, Yungoos (day only), Grubbin No competition here, Route 4 wins in my opinion! Defense: Route 1: Bonsly (can have Sturdy) Route 3: Vullaby (Moon Version) Ten Carat Hill: Roggenrola (can have Sturdy) Wela Volcano Park: Cubone (not ideal; can summon Kangaskahn) Route 12: Geodude (use a Pokémon to break through sturdy), Torkoal Exeggutor Island: Exeggecute, Pelipper Bonus: Pelipper gives decent experience. Special Attack: Ten Carat Hill: Psyduck (has Confusion, may have Water Pulse), Spinda Melemele Meadow: Oricorio Route 1: Magnemite (Trainer School) Hau'oli Cemetery: Gastly I recommend Spindas at Ten Carat Hill. Special Defense: Route 1: Ledyba (day only) Route 2: Drowzee Route 8: Tentacool (surf) I suggest Ledyba if it's daytime, Drowzee if it's night time. Speed: Route 1: Alolan Rattata Route 2: Spearow, Cutiefly Route 3: Delibird Ten Carat Hill- Alolan Diglett Hau'oli City: Finneon, Wingull (has Supersonic), Alolan Meowth Diglett Tunnel: Zubat, Diglett I recommend Diglett Tunnel for the 100% chance of a Speed EV Pokémon. Thanks for the first island suggestions, @[member="IceyEmmy"]!
I'ma add to your list a bit if you don't mind, most of what I'm adding is just so you can try to stay in one island though. Also adding the alternatives that you can find, even if they are low encounter rate because they still can call for help and still give the EVs you're looking for: HP: Route 1- Munchlax Route 2- Makuhita (Usually the first patch of grass will have a rustling patch, and it's normally makuhita) Attack: Route 2- Growlithe Route 3- Mankey, Rufflet (Sun Version) Ten Carat Hill- Machop, Rockruff Defense: Route 1- Bonsly (can have Sturdy) Route 3- Vullaby (Moon Version) Ten Carat Hill- Roggenrola (can have Sturdy), Carbink (Gives Defense AND Sp. Def, it's hidden ability is Sturdy; may call Sableye) Sp. Atk: Ten Carat Hill- Psyduck (Has Confusion, may have Water Pulse), Spinda Sp. Def: Route 1- Ledyba Route 2- Drowsee (has Hypnosis and can confuse with confusion, recommended to use sub) Ten Carat Hill- Carbink (Gives Defense AND Sp. Def, it's hidden ability is Sturdy; may call Sableye) Speed: Hau'lou City- Finneon, Wingull (has supersonic), Alolan Meowth Route 2- Spearow, Cutiefly Route 3- Delibird Ten Carat Hill- Alolan Diglett
To add as a very useful Sun Exclusive location: Attack: Yungoos Or Moon Exclusive Speed: Rattatta Both are Verdant Cavern Ambush Pokémon, meaning increased SOS Chaining. To add on, in Moon, the only Pokémon in there other then the ambush give Speed
Oh nice this helps a bunch! And in this gen it supposedly takes one stat only like 5 mins to train for 6 Pokémon