For durability and smallest features, a metal unibody types that don’t have seams are great.
For performance, I opt to have an nvme SATA enclosure that is USB 3.1 capable. Copying 15 GB in a minute or 2 is so satisfying. Plus my god being able to easily change the nvme SATA drive on the fly if needed and it being able to go up to a few TB without loss of performance is just to good
For price, nothing beats free. Just don’t expect much more than what you get.
I guess I’ll be the one to mention Costco, and the recycleable boxes I take home instead.