Nightshade// Flowerfell x Reaper Sans by urbanAdventurer on DeviantArt

Sans, Stands Awakening Wiki

Teleporting Nihilist ~Sans vs. Reapers

Goth, Undertale AU Offspring Wiki

Create a Undertale Sans AU Powerscaleing Tier List - TierMaker

Death Battle Reaper!Sans vs Zeref by DogDays11 on DeviantArt

halloween au reaper and geno collab by climbingstarrs on DeviantArt

Create a Sans AU Ship Tierlist Tier List - TierMaker

Create a AU Papyrus/Sans List Tier List - TierMaker

Reaper Sans (Reapertale) by CamilaKawaii25 on DeviantArt

Former Undertale fan ranks Sans AU's. Ask anything. (Also, just to clarify, I am NOT an AU fan. I used to be, being the reason I know some. (Also also, I did