Where can I find free Materials and Textures for 3dsMax - VRay renders?

I'm learning 3d modelling and I want quality Materials and Textures for my renders to look good. I'll only use them for personal educative use.

For example I know poliigon.com (they have very good quality) but there is only few free textures and materials.

Where do you took textures for educating/experimenting? Do you just google some texture in good resolution (2k x 2k and more) and you create bump, displace and reflect map from it in PS?

Textures

https://www.textures.com/

https://www.freepik.com/

https://www.shawcontract.com

https://www.friendlyshade.com/

https://www.swtexture.com/

Materials

http://coronamaterials.com/

https://www.vray-materials.de/all_materials.php

Thanks but everything is paid or low resolution (not even 1000x1000)

I know https://www.vray-materials.de/all_materials.php this is best vray material site for me at this moment. Everything free and good quality.

I would appreciate something like that.

Well you get what you pay for. Finding free textures at a high resolution can be pretty limiting. Before I paid for materials, I would spend hours making them myself using google and Photoshop. It can be time consuming but it free.