Here are the recommended Friend Safaris for EV-training:
These are options you can use, you can always choose to use the EV-trainer in your Secret Base!
(Repost from the old Reddit)
Speed
SkyMara
Pokemon: Plusle (1EV), Pikachu (2EV) and Electabuzz (2EV).
Nurse: Available! Be aware of static!
Mart: Available!
Alternitave:
SavageNDN
Pokemon: Minun (1EV), Pikachu (2EV) and Electabuzz (2EV).
Nurse: Not available! Be aware of static!
Mart: Not available!
Be aware: Puzzle!
Attack
granstafer
Pokemon: Gurdurr (2EV), Sawk (2EV) and Pignite (2EV).
Nurse: Available!
Mart: Available!
Be aware: Sturdy Sawk
Alternitave:
Basss
Pokemon: Machoke (2EV), Sawk (2EV) and Riolu (1EV).
Nurse: Available!
Mart: Available!
Be aware: Sturdy Sawk and Riolu with Endure! (could be inefficient)
Alternitave:
Trelorockas
Pokemon: Nidorino (2EV), Spinarak (1EV) and Croagunk (1EV).
Nurse: Available! Be aware of Poison Point!
Mart: Not available!
Alternitave:
Tyr
Pokemon: Tyrogue (1EV), Mienfoo (1EV) and Riolu (1EV).
Nurse: Available!
Mart: Available!
Be aware: Fake Out, Detect and Endure! (could be inefficient)
Sp.Attack
pkaz18
Pokemon: Braizen (2EV), Magmar (2EV) and Lampent (2EV).
Nurse: Not available!
Mart: Not available!
Defense
KlangDude
Pokemon: Klang (2EV), Metang (2EV) and Durant (2EV).
Nurse: Available!
Mart: Not available!
Alternitave:
115wiitoxic
Pokemon: Lairon (2EV), Graveler (2EV) and Shieldon (1EV).
Nurse: Available! (at entrance)
Mart: Not available!
Sp.Defense
Gwydyr
Pokemon: Skrelp (1EV), Sliggoo (2EV) and Shelgon (2 Def EV).
Nurse: Not available!
Mart: Not available!
Jayden
Pokemon: Floette (2EV), Mr. Mime (2EV) and Carbink (1Def/1SpD EV).
Nurse: Not available!
Mart: Not available!
HP
Level Trainer
Pokemon: Audino (2EV)
In your own Secret Base!
If there are alternative suggestions for EV-training Friend Safari, please comment them down below!
I will check the suggestions and update this post when needed!
Note: Pokemon shown in italic text do not provide EV’s for that category.