well, they definitely exist, if nothing else college dorms use them for sure. what are your criteria for "good" and what is your budget?

amazon has these 2, to start with. they're a bit childish, though.

https://www.amazon.com/Harper-Bright-Designs-Trundle-Drawers/dp/B0BGXNXKK8/ has different finishes and configurations for the bottom

https://www.amazon.com/MWrouqfur-Ladder-Multifunctional-Design-Saving/dp/B0BFWPD2F2/ has... a slide....