Gumroad - Hard Surface Detail Alpha Pack

Mixkit: Known for its user-friendly interface, Mixkit provides a vast collection of free video assets, including motion graphics and video templates. While they aren't directly from Videohive, they offer a comparable quality that can be integrated into your projects seamlessly.
Videezy: Videezy offers a variety of free and paid video assets, including After Effects templates. Their extensive library is perfect for those looking to enhance their videos without breaking the bank.
Motion Elements: While Motion Elements primarily focuses on premium content, they regularly feature free downloads that include video templates similar to those found on Videohive. Their search interface allows you to filter out the free options easily.
Editor’s Depot: This site provides free editing tools and templates, ensuring you have access to some elements similar to Videohive offerings. Though the selection might not be as vast, it’s a valuable resource for cost-effective production.
Motion Array: With a solid reputation, Motion Array occasionally offers free downloads that replicate some Videohive elements. Subscribing to their newsletter might help you get alerts about any new freebies available.

Gumroad - Hard Surface Detail Alpha Pack

Substance Painter, 3ds Max, Maya, Zbrush, Keyshot | ZIP 665 MB

https://gumroad.com/l/dkyti

This pack of detail alphas is what I used on the NOVA-17 project. Included are 150 Hard Surface Details that come in the form of normal maps and height maps. This pack can be used with Substance Painter, 3ds Max, Maya, Zbrush, Keyshot and any other 3d packages that support normal and height map textures.
In addition with this pack are 2 bonus Items: -NOVA-17 bust Substance Painter file with the associated normal & ambient occlusion maps. -10 Substance Painter Materials that I created in Substance Designer to texture NOVA-17