Killer (sans) by SoulGemArt on DeviantArt

Killer Sans by DoodleBug4U on DeviantArt

UTAU Dakimakura - Killer Sans by AlainaPrana on DeviantArt

Nevertale Sans on X: you know, because of his soul.. XD Killer Sans belongs to Rahafwabas Nightmare to Jokublog / X

Killer Sans, Undertale AU Sans Info

Killer!Sans, Wiki

Stage 4 killers soul in my opinion : r/Undertale

Character.AI - Killer sans

Undertale AU Killer!Sans Blue Black Cosplay Costume

UT: Rise of Souls] - [NMD Chara Rework with Killer Sans - Lethal Deal (Chara skin) showcase]

Out of these four who is better. : r/Undertale