There are several new options for EV training in this generation. One interesting method is to use Friend Safari. There are only three pokemon in each safari and they share a type to enable you to exploit a common weakness. Most of the members here have taken advantage of Shadow's friend safari that has Audino and Chansey, two pokemon that each provide 2 HP Effort Values along with large experience points every time you faint or capture them. The biggest advantage of EV training in Friend Safari is the greater likelihood of finding shiny pokemon there.
To help guide you here are the EV points available in each type of safari:
NormalAipom - 1 Speed
Dunsparce - 1 HP
Teddiursa - 1 Attack
Lillipup - 1 Attack
Loudred - 2 HP
Kecleon - 1 SpDef
Audino - 2 HP
Minccino - 1 Speed
Chansey - 2 HP
Ditto - 1 HP
Eevee - 1 SpDef
Smeargle - 1 Speed
BugButterfree - 2 SpAttack, 1 SpDef
Paras - 1 Attack
Ledyba - 1 SpDef
Combee - 1 Speed
Beautifly - 3 SpAttack
Masquerain - 1 SpAttack 1 SpDef
Volbeat - 1 Speed
Illumise - 1 Speed
Venomoth - 1 SpAttack 1 Speed
Pinsir - 2 Attack
Heracross - 2 Attack
Vivillon - 3 Def
DarkMightyena - 2 Attack
Nuzleaf - 2 Attack
Pawniard - 1 Attack
Vullaby - 1 Def
Sneasel - 1 Speed
Cacturne - 1 Attack, 1 SpAttack
Crawdaunt - 2 Attack
Sandile - 1 Attack
Sableye - 1 Attack 1 Def
Absol - 2 Attack
Liepard - 2 Speed
Inkay - 1 Attack
DragonGabite - 2 Attack
Fraxure - 2 Attack
Dragonair - 2 Attack
Shelgon - 2 Def
Noibat - 2 Speed
Druddigon - 2 Attack
Sliggoo - 2 SpDef
ElectricElectrode - 2 Speed
Pachirisu - 1 Speed
Emolga - 2 Speed
Dedenne - 2 Speed
Pikachu - 2 Speed
Electabuzz - 2 Speed
Stunfisk - 2 HP
Helioptile - 1 Speed
Manectric - 2 Speed
Luxio - 2 Attack
Zebstrika - 2 Speed
Galvantula - 2 Speed
FairyTogepi - 1 SpDef
Snubbull - 1 Attack
Kirlia 1 SpAttack
Dedenne - 2 Speed
Jigglypuff - 2 HP
Mawile - 1 Attack, 1 Def
Spritzee - 1 HP
Swirlix - 1 Def
Clefairy - 2 HP
Floette - 2 SpDef
FightingMankey - 1 Attack
Machoke - 2 Attack
Meditite - 1 Speed
Mienfoo - 1 Attack
Throh - 2 HP
Sawk - 1 Attack
Pancham - 1 Attack
Tyrogue - 1 Attack
Breloom - 2 Attack
Hariyama - 2 HP
Riolu - 1 Attack
FireGrowlithe - 1 Attack
Ponyta - 1 Speed
Magmar - 2 SpAttack
Pansear - 1 Speed
Charmeleon - 1 SpAttack 1 Speed
Slugma - 1 SpAttack
Larvesta - 1 Attack
Pyroar - 2 SpAttack
Ninetales - 1 SpAttack 1 Speed
Braixen - 2 SpAttack
Fletchinder - 2 Speed
FlyingPidgey - 1 Speed
Spearow - 1 Speed
Farfetch'd - 1 Attack
Doduo - 1 Attack
Hoothoot - 1 HP
Tranquill - 2 Attack
Woobat - 1 Speed
Swanna - 2 Speed
Tropius - 2 HP
Rufflet - 1 Attack
Fletchinder - 2 Speed
Hawlucha - 2 Attack
GhostShuppet - 1 Attack
Lampent - 2 SpAttack
Phantump - 1 Attack
Pumpkaboo - 1 Def
Dusclops - 1 Def 1 SpDef
Drifblim - 2 HP
Spiritomb - 1 Def 1 SpDef
Golurk - 2 Attack
GrassOddish - 1 SpAttack
Tangela - 1 Def
Sunkern - 1 SpAttack
Pansage - 1 Speed
Ivysaur - 1 SpAttack, 1 SpDef
Swadloon - 2 Def
Petilil - 1 SpAttack
Sawsbuck - 2 Attack
Maractus - 2 SpAttack
Quilladin - 2 Def
Gogoat - 2 HP
GroundSandshrew - 1 Def
Wooper - 1 HP
Phanpy - 1 HP
Trapinch - 1 Attack
Dugtrio - 2 Speed
Marowak - 2 Def
Nincada - 1 Def
Camerupt - 1 Attack, 1 SpAttack
Gastrodon - 2 HP
Palpitoad - 2 HP
Diggersby - 2 HP
IceDelibird - 1 Speed
Snorunt - 1 HP
Spheal - 1 HP
Snover - 1 Attack
Sneasel - 1 Speed
Beartic - 2 Attack
Bergmite - 1 Def
Dewgong - 2 Sp Def
Cloyster - 2 Def
Lapras - 2 HP
Piloswine - 1 HP 1 Attack
PoisonKakuna - 2 Def
Gloom - 2 SpAttack
Cascoon - 2 Def
Seviper - 1 Attack 1 Sp Attack
Venomoth - 1 SpAttack 1 Speed
Ariados - 2 Attack
Swalot - 2 HP
Garbodor - 2 Attack
Muk - 1 HP 1 Attack
Drapion - 2 Def
Toxicroak - 2 Attack
Whirlipede - 2 Def
PsychicAbra - 1 Sp Attack
Drowzee - 1 Sp Def
Grumpig - 2 Sp Def
Munna - 1 HP
Wobbuffet - 2 HP
Sigilyph - 2 SpAttack
Espurr - 1 Speed
Xatu - 1 SpAttack 1 Speed
Girafarig - 2 SpAttack
Gothorita - 2 SpDef
Duosion - 2 SpAttack
RockNosepass - 1 Def
Boldore - 1 Attack 1 Def
Dwebble - 1 Def
Onix - 1 Def
Magcargo - 2 Def
Corsola - 1 Def
Pupitar - 2 Attack
Rhydon - 2 Attack
Shuckle - 1 Def 1 SpDef
Barbaracle - 2 Attack
SteelMagneton - 2 Sp Attack
Mawile - 1 Attack 1 Def
Ferroseed - 1 Def
Forretress - 2 Def
Skarmory - 2 Def
Metang - 2 Def
Klang - 2 Def
Bronzong - 1 Def 1 SpDef
Excadrill - 2 Attack
Klefki - 1 Def
WaterKrabby - 1 Attack
Octillery - 1 Attack 1 SpAttack
Bibarel - 2 Attack
Panpour - 1 Speed
Wartortle - 1 Def 1 SpDef
Gyarados - 2 Attack
Quagsire - 2 HP
Floatzel - 2 Speed
Poliwhirl - 2 Speed
Azumarill - 3 HP
Frogadier - 2 Speed
Some pokemon provide two different EVs and, unless you need them both, I tend to avoid them.
Here is a breakdown by the type of EV for pokemon that only provide one type of EV.
HPDunsparce - 1 HP
Loudred - 2 HP
Audino - 2 HP
Chansey - 2 HP
Ditto - 1 HP
Stunfisk - 2 HP
Jigglypuff - 2 HP
Spritzee - 1 HP
Clefairy - 2 HP
Throh - 2 HP
Hariyama - 2 HP
Hoothoot - 1 HP
Tropius - 2 HP
Drifblim - 2 HP
Gogoat - 2 HP
Wooper - 1 HP
Phanpy - 1 HP
Gastrodon - 2 HP
Palpitoad - 2 HP
Diggersby - 2 HP
Snorunt - 1 HP
Spheal - 1 HP
Lapras - 2 HP
Swalot - 2 HP
Munna - 1 HP
Wobbuffet - 2 HP
Quagsire - 2 HP
Azumarill - 3 HP
AttackTeddiursa - 1 Attack
Lillipup - 1 Attack
Paras - 1 Attack
Pinsir - 2 Attack
Heracross - 2 Attack
Mightyena - 2 Attack
Nuzleaf - 2 Attack
Pawniard - 1 Attack
Crawdaunt - 2 Attack
Absol - 2 Attack
Inkay - 1 Attack
Gabite - 2 Attack
Fraxure - 2 Attack
Dragonair - 2 Attack
Druddigon - 2 Attack
Luxio - 2 Attack
Mankey - 1 Attack
Machoke - 2 Attack
Mienfoo - 1 Attack
Sawk - 1 Attack
Pancham - 1 Attack
Tyrogue - 1 Attack
Breloom - 2 Attack
Riolu - 1 Attack
Growlithe - 1 Attack
Slugma - 1 SpAttack
Larvesta 1 Attack
Farfetch'd 1 Attack
Tranquill 2 Attack
Rufflet 1 Attack
Hawlucha 2 Attack
Shuppet - 1 Attack
Phantump - 1 Attack
Golurk - 2 Attack
Sawsbuck - 2 Attack
Trapinch - 1 Attack
Snover - 1 Attack
Beartic - 2 Attack
Ariados - 2 Attack
Garbodor - 2 Attack
Toxicroak - 2 Attack
Pupitar - 2 Attack
Rhydon - 2 Attack
Barbaracle - 2 Attack
Excadrill - 2 Attack
Krabby - 1 Attack
Bibarel - 2 Attack
Gyarados - 2 Attack
DefenseVivillon - 3 Def
Vullaby - 1 Def
Shelgon - 2 Def
Pumpkaboo - 1 Def
Tangela - 1 Def
Swadloon - 2 Def
Quilladin - 2 Def
Sandshrew - 1 Def
Marowak - 2 Def
Nincada - 1 Def
Bergmite - 1 Def
Cloyster - 2 Def
Cascoon - 2 Def
Drapion - 2 Def
Whirlipede - 2 Def
Nosepass - 1 Def
Dwebble - 1 Def
Onix - 1 Def
Magcargo - 2 Def
Corsola - 1 Def
Ferroseed - 1 Def
Forretress - 2 Def
Skarmory - 2 Def
Special AttackBeautifly - 3 Sp Attack
Kirlia - 1 Sp Attack
Magmar - 2 Sp Attack
Pyroar - 2 Sp Attack
Braixen - 2 Sp Attack
Lampent - 2 Sp Attack
Oddish - 1 Sp Attack
Sunkern - 1 Sp Attack
Petilil - 1 Sp Attack
Maractus - 2 Sp Attack
Gloom - 2 Sp Attack
Abra - 1 Sp Attack
Sigilyph - 2 Sp Attack
Girafarig - 2 Sp Attack
Duosion - 2 Sp Attack
Magneton 2 Sp Attack
Special DefenseKecleon - 1 Sp Def
Eevee - 1 Sp Def
Ledyba - 1 Sp Def
Sliggoo - 2 Sp Def
Floette - 2 Sp Def
Dewgong - 2 Sp Def
Drowzee - 1 Sp Def
Grumpig - 2 Sp Def
Gothorita - 2 Sp Def
SpeedAipom - 1 Speed
Minccino - 1 Speed
Smeargle - 1 Speed
Combee - 1 Speed
Volbeat - 1 Speed
Illumise - 1 Speed
Sneasel - 1 Speed
Liepard - 2 Speed
Noibat - 2 Speed
Electrode - 2 Speed
Pachirisu - 1 Speed
Emolga - 2 Speed
Dedenne - 2 Speed
Pikachu - 2 Speed
Electabuzz - 2 Speed
Helioptile - 1 Speed
Manectric - 2 Speed
Zebstrika - 2 Speed
Galvantula - 2 Speed
Meditite - 1 Speed
Pansear - 1 Speed
Pidgey - 1 Speed
Spearow - 1 Speed
Woobat - 1 Speed
Swanna - 2 Speed
Fletchinder - 2 Speed
Pansage - 1 Speed
Delibird - 1 Speed
Espurr - 1 Speed
Floatzel - 2 Speed
Poliwhirl - 2 Speed
Frogadier - 2 Speed
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