So i'm about to continue the chapter in hybrids in undertale and i started thinking that everyone has been making their own AU these days. I wanna make one... Problem is....

I dont know what to base it off.

THERE ARE ALREADY SO MANY THAT I THOUGHT OF AND WAS TAKEN ((and yes my ideas were for sans cause he is the most popular))

CAT
DANCE
HORROR
ink in a way but kinda not cause i would not make a new ink since he created all the AU
SWAP then again i dont think i'd be smart enough to make swap

Is there one like the crystal gems? Were like all the weapons came from gems like on their hand or something....

I HAVE NO IDEAS