The Ultimate 3D Creator’s Humble Bundle:
https://www.humblebundle.com/software/ultimate-3d-creators-bundle-3d-assets-hdris-and-training-software?partner=gamefromscratch

This bundle is a collection of 3D assets including 3D models from Action VFX, as well as HDRI maps and other textures from MattePaint as well as Houdini and Unreal Engine training courses from Double Jump Academy.

Links
https://www.humblebundle.com/software/ultimate-3d-creators-bundle-3d-assets-hdris-and-training-software?partner=gamefromscratch
https://gamefromscratch.com/the-ultimate-3d-creators-bundle/

The above links contain a code that enables you to direct a portion of your purchase to support GFS (and thanks so much if you do!).