What are all methods of evolution in Pokemon GO?

Question

I think there is a lot. Also, answer 'Special Methods' for those like Sirfetch'd who have unique methods.

Comments

Not a full answer but

Sinnoh stone
Unova stone
Metal coat
Sun stone
Upgrade
Nicknaming
Trading
Kings rock
Walking + candy
Special annoying things

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I wasn't expecting specific stones, just an item

Answer 1

• Candy (x12, x25, x50, x100, x200, x400)
• Trading (Graveler, Machoke, Kadabra, Haunter, Boldore, Gurdurr, Karrablast, Shelmet)
• IV values + candy (Tyrogue)
  • Attack IVs higher - Hitmonlee
  • Defense IVs higher - Hitmonchan
  • HP / Stamina IVs higher - Hitmontop
  • Tie between Attack & Defense - random between Hitmonlee and Hitmonchan
  • Tie between Attack & Stamina - random between Hitmonlee and Hitmontop
  • Tie between Defense & Stamina - random between Hitmonchan and Hitmontop
  • Tie between all 3 IVs - random between Hitmonlee, Hitmonchan, and Hitmontop
• Items + candy (Metal Coat, Upgrade, King's Rock, Sinnoh Stone, Unova Stone, Dragon Scale, Sun Stone) + candy
  • Metal Coat - Scyther, Onix
  • Upgrade - Porygon
  • Dragon Scale - Seadra
  • Sun Stone - Gloom, Sunkern, Cottonee, Petilil
  • King's Rock - Poliwhirl, Slowpoke
  • Sinnoh Stone - Lickitung, Rhydon, Tangela, Electabuzz, Magmar, Porygon2, Togetic, Aipom, Yanma, Murkrow, Misdreavus, Gligar, Sneasel, Piloswine, Kirlia, Roselia, Dusclops, Snorunt
  • Unova Stone - Panpour, Pansage, Pansear, Munna, Minccino, Eelektrik, Lampent
• Walking 1km as buddy + candy (Woobat)
• Walking 15km as buddy + candy (Bonsly, Mime Jr., Happiny)
• Walking 20km as buddy + candy (Feebas)
• Earning 2 buddy candy (walk 10km), evolve during the day (Espeon)
• Earning 2 buddy candy (walk 10km), evolve during the night (Umbreon)
• Earn 70 new buddy hearts (Sylveon)
• Lures + candy
  • Magnetic: Nosepass, Magneton
  • Glacial: Glaceon
  • Mossy: Leafeon
• Nicknames + candy (can only be used once per account)
  • Rainer: Vaporeon
  • Sparky: Jolteon
  • Pyro: Flareon
  • Sakura: Espeon
  • Tamao: Umbreon
  • Linnea: Leafeon
  • Rea: Glaceon
  • Kira: Sylveon
• Making 10 Excellent Throws when buddied + candy (Galarian Farfetch'd)
• Winning in 10 raids when buddied + candy (Galarian Yamask)
• Catch 32 Dark types when buddied + candy (Pancham)
• Catch 30 Poison types when buddied + candy (Galarian Slowbro)
• Use an Incense when buddied + candy (Spritzee)
• Feed your buddy 25 times when buddied + candy (Swirlix)

Comments

Rainy lure is added, and Sliggoo needs it when there's no rain.

Answer 2

Candy, king stones, walking and candy or stones, Magnetic Mossy or icy lure modules, name trick, trading, metal coat, dragon scales, sinnoh stone, unova stones, sun stones, upgrade, walk 10km then evolve at certain times