Textures
3DAssets.one
Aggregator of several free texture sites
Free
CC0 Textures
Free and CC0 licensed textures
Free PBR textures
Poliigon
Textures for achieving photorealism
Paid$16 month
Share Textures
Free PBR and CC0 PBR textures
Texture Haven
Free and CC0 licensed textures from the creators of HDRIHaven
Texture Can
Over 170 Free PBR CG textures for personal and commercial use