Toddler Tower

Alrighty, I have a very independent little helper and this morning I had an almsot fatal accident while washing dishes with her. Everyone is fine, but long story short I let her stand on our barstool to "help" me with dishes and the stool was starting to slide while I was putting a knife on the drying rack, and yeah the knife almost took my ring finger. Anybody use a kitchen toddler tower? If so any recommendations on what to look for/ brand is best? I live in a tiny home, so something that could possibly be folded and put away is a plus!