I've only seen these on the websites and have never bought any of them:

Toyhax Toy Stages
https://toyhax.com/56-stages-for-tf

Extreme Sets
https://extreme-sets.com

This one I have, it's really big and I don't have the space for it so I just leave the pieces in the box:
Toy Story TS-01 Command Centre Pop-up
https://www.ebay.com.au/itm/18438342...MAAOSwEwpegUx3