This mod adds craft to the Linking Cord and works with all pokemon:

Poliwhirl (while holding King's Rock) → Politoed
Kadabra → Alakazam
Machoke → Machamp
Graveler → Golem
Alolan Graveler → Alolan Golem
Slowpoke (while holding King's Rock) → Slowking
Haunter → Gengar
Onix (while holding Metal Coat) → Steelix
Rhydon (while holding Protector) → Rhyperior
Seadra (while holding Dragon Scale) → Kingdra
Scyther (while holding Metal Coat) → Scizor
Electabuzz (while holding Electirizer) → Electivire
Magmar (while holding Magmarizer) → Magmortar
Porygon (while holding Upgrade) → Porygon2
Porygon2 (while holding Dubious Disc) → Porygon-Z
Feebas (while holding Prism Scale) → Milotic
Dusclops (while holding Reaper Cloth) → Dusknoir
Clamperl (while holding Deep Sea Tooth) → Huntail
Clamperl (while holding Deep Sea Scale) → Gorebyss
Boldore → Gigalith
Gurdurr → Conkeldurr
Karrablast (with Shelmet/Accelgor in the party) → Escavalier
Shelmet (with Karrablast/Escavalier in the party) → Accelgor
Spritzee (while holding Sachet) → Aromatisse
Swirlix (while holding Whipped Dream) → Slurpuff
Phantump → Trevenant
Pumpkaboo → Gourgeist