Hi! I'm really thankful for Blender and it's amazing community. So I would like to thank you with a free texture pack.
It contains around 30 materials with patterns to mix and match. They're pbr so they work with most modern render engines.
Mograph Mentor is hosting them for me and may require you to create a free account (with your email). Just an FYI, in case that's a deal breaker.
Here is a quick tutorial on how to use pbr materials in Blender: