Material starter content kit and material tiling


I’d like to know is there any more comprehensive material content library other than that which is shipped originally by the starter kit?

I also would like to know what is the general approach when you tile the material to different size of object, in order to fit in one have to use TextureCoordinate component, on material BP. Instead of that what practical approach can be taken to have the material will fit the same size of texture in different size of objects.