White figure with a simple black face, purple glitch-style arms, and no hair or clothes visible. Fits the classic model in Minecraft Java - download the PNG and set it in the launcher.
Free, and nothing to sign up for.
Funtime Freddy
Defiler Flood Spartan Reckoning
Young Soul Reaper
Plague Marine Death Guard
Tan Herobrine
Green Ender Man
Springtrap Armour Endo
Purple Skeleton Skin
Sick Creeper
Endless Containment
Autumn Demon
King Demon Astric
Horror Ghost
Jeff The Killer
Sabtrainina Dragon Skin
Mono Stump Hat Little Nightmares
Rainimator Pig King
Koopa Klaws
Badboyhelo
Lobo Ferreiro
Among Us White Suit
Blue Stone Golem
Ender Mage Gloveless Glasses
Thanos
Perfect Cell
Hackermite
Partytime Chica
Red Dragon
FNAF Nightmare Foxy
The Nightmare Knight