Haven't found any list of archetypes online so let's make our own, I've started it but help me complete it ! In no particular order :
ST :
Movement
Dwarves
Traps
Elves
Harmony
Waylay Spam
Symbiosis
Handbuff
Low-unit Milva / Regis
Spella'tael
Milva-less Low-unit
SK :
Pirates / Ships
Warriors
Alchemy
Rain
Sigvald Self-wound
Lippy
Beast Swarm
Witcher Self Wound
Lippy Shupe Casino
SY :
Firesworn Spam
Bounty
Crimes
Tribute
Townsfolks
Collusion
Self-Poison
Double Salamander
Hoard Passiflora
NR :
Siege
Commandos
Cintrian Royal Guards Spam
Swarm Meve / Draug
Shields
Patience Mages
Big Archgriffin
Coen / Belohun / Vysygota
Witcher Swarm
Revenants / Spells
Meditating Mages Spam
NG :
Hyperthin
Clog / Kolgrim
Soldiers
Statuses
Assimilate
Vyper Spam
Tactics
Mill
Spies
Imperial Practitioner Spam (Mushy / Ball ... Whatever )
MO :
Deathwish
Relicts
Rat / Drones Swarm
Vampires
Wild Hunt
Kelly
Rat Board Clog
Viy
Golyat Mill
Thrive Koschey
Kikimore Queen Insectoids
Source: https://www.reddit.com/r/gwent/comments/tglkj1/long_list_of_all_archetypes_help_me_complet_it/