There are some good youtube reviews comparing all the available and not available drawer systems. Incuding load test with weights in them to see how the drawer bottoms sag and scrape.
Some dewalt and some milwaukee are readily available. No idea if the rolling base platforms for them are or not. Not hard to make either way.
Personally, the range I want to see is the Toughbuilt one which includes some drawer units. Staktech or whatever it's called has been out for a while now but if it does get here, it still has to be affordable....