Depends on how low end you want to go.
@rc75 has had them
Nobilium has them
Every tooth seller has them.
@sidesh0wb0b has some for sale taking up space in his lab, or had them. Huge ones even, like 25 drawers
I'm crazy though. I put the upper anteriors in proper cabinets and the rest are set up like these. One box per brand per shade. For repairs and 6month flippers while waiting for osceointegration I use these, but I'm not about to buy a cabinet that would cost more than the teeth.
That's it, you'll never see me again!
dentallabnetwork.com