I have some 3D models of food and animals that I need to make for various games. However, I am wondering how I will be able to use textures. I have Adobe Substance and Creative Cloud, but I don't know how to acquire images to use for textures without having to take close-up photos of things. I know stock images are a thing, but the textures taken from them can be low-res compared to the textures of other objects that I am already making models for.