The first part being [Here]

Wasn't mine, but I saw it's not yet completed so I thought, why not help complete it
Been meaning to but I forgot about it until this month lol
Feel free to let me know if I miss some, I'll add them in o/

EDIT as of 16th June 2024: added the first part's guide into this post along with minor fixes and map additions in Ghost Town and Wilderness Volcano

The only thing not included in specific maps are Unowns as they appear in all, along with Monthly Collection Contest pokes

EDIT as of 1st August 2024: updated recent pokedex additions which shows up in map, each map getting 2 additional pokemon.


Forest
Cacnea
Caterpie
Cherubi
Grookey
Kabuto
Lileep
Lotad
Oddish
Shroomish
Skwovet
Sunkern
Staryu
Treecko
Weepinbell


Ice Cave
AlolanSandshrew
Cloyster
Delibird
Dewgong
Dratini
Eiscue
Glalie
Jynx
Lapras
Sealeo
Smoochum
Sneasel
Spheal
Swinub


Ghost Town
Dreepy
Drifloon
Drowzee
Duskull
Gastly
Haunter
Misdreavus
Phantump
Sableye
Shedinja
Shuppet
Sinistea
Spiritomb
Zubat


Waterfall
Arrokuda
Clamperl
GalarianSlowpoke
Gorebyss
Kingler
Krabby
Lapras
Magikarp
Mantyke
Poliwag
Psyduck
Seel
Staryu
Tentacool


Power Plant
Electabuzz
Electrike
Elekid
Magnemite
Minun
Morpeko
Pachirisu
Pichu
Pikachu
Plusle
Rotom
Shinx
Voltorb
Yamper


Wilderness Volcano
Camerupt
Fennekin
Golden Charmander, Charmeleon, Charizard
Growlithe
Houndour
Magby
Magmar
Numel
Oricorio
Ponyta
Rolycoly
Sizzlipede
Slugma
Torkoal
Vulpix


Snowpoint Town
Delibird
Eiscue
Goldeen
Jynx
Psyduck
Regice
Shellder
Smoochum
Sneasel
Snom
Snover
Spheal
Swinub


Dark Cave
Aerodactyl
Anorith
Aron
Bonsly
Cranidos
GalarianZigzagoon
Geodude
Impidimp
Kabuto
Larvitar
Lileep
Onix
Rhyhorn
Shieldon


Palm Beach
Chewtle
Hitmonchan
Hitmonlee
Hitmontop
Krabby
Makuhita
Pincurchin
Scyther
Seadra
Shellder
Shroomish
Slowpoke
Surskit
Wailmer


Safari Zone
Cufant
Ditto
Kangaskhan
Larvitar
Magnemite
Onix
Scyther
Seadra
Shroomish
Slowbro
Slowpoke
Surskit
Wailmer
Wooloo


Time Forest
Applin
Cacnea
Caterpie
Cherubi
HisuianDecidueye
Kabuto
Lileep
Lotad
Oddish
ShinyCelebi
Shroomish
Staryu
Sunkern
Treecko
Weepinbell


Lavender Tower
Cursola
Duskull
Drowzee
Frillish
Gastly
Haunter
Litwick
Misdreavus
Runerigus
Sableye
Shedinja
Shuppet
Snorunt
Zubat


Autumn Dream
Axew
Bonsly
Budew
Cottonee
Deerling
Gossifleur
HisuianLilligant
Natu
Pansage
Patrat
Petilil
Seedot
Tropius
Trubbish


Al Sahra
Aerodactyl
Baltoy
Cacnea
Carbink
Cranidos
Larvitar
Nosepass
Roggenrola
Sandile
Shieldon
Silicobra
Solrock
Stonjourner
Tyrunt


Low Visibility
Doduo
HisuianBraviary
Hoothoot
Murkrow
Natu
Noibat
Pidgey
Pidove
Rookidee
Spearow
Starly
Swablu
Taillow
Wingull


SS Anne
Arrokuda
Basculin
Binacle
Buizel
Clamperl
Clauncher
Cramorant
Feebas
Magikarp
Panpour
Remoraid
Skrelp
Tympole
Wailmer