We are trying to find an alternative for BerconTile. The Simple Tiles OSL shader seems to be going into the right direction, its already quite near to BerconTile functionality but the missing key feature is the UV per tile generation.
Would be great if that option could be added.
There is a quite good tutorial regarding the Simple Tiles Map Shader with random textures:
https://cganimator.com/osl-mini-tutorial-2-random-map-per-tile-for-simpletiles-map/