The key here is to mimimize the plastic. Almost all brands besides SZ are plastic interior, regardless of their reliability

Used restaurant equipment

Something like this:

https://www.siemens-home.bsh-group.com/uk/en/mkt-category/cooling/freestanding-fridges-and-freezers

I got mine from a place that sells returns and damaged equipment. My fridge was originally $2k. I was able to get for $600 because it has a big scratch on the side of that goes against the wall. It wasn't used or anything just damaged during shipping.