Texture generator powered by AI https://withpoly.com/
These are some materials I made by using the Poly texture generator, it's an AI powered tool which can generate textures based on keywords you type(similar to MidJourney, but for textures). I used it in conjunction with Substance 3D sampler where I used the texture to material option. I made some minor adjustments there too like reduced saturation, increased sharpness, and some delighting which is done automatically by 3D sampler. The nice thing about this workflow is that you can always export materials from Sampler into Substance Designer where you can continue to add variation to the material. Came out looking pretty decent for very little work.
The creators of Poly have provided this coupon code for the pro version - Code for 20% off : “FRIENDS3"