I use 5 different hard drives. It takes a few seconds to swap out hard drives.
I would like to see if there are an enclosure to hold 3-5 drives, that would be cool.
this one looks cheap but should work.
If you mean to hold 3-5 different sizes drives, I highly recommend the enclosure which is just a tad bigger than a standard 2.5" drive,so that's also a plus. Inateck holds several enclosures which is suitable for 9.5mm and below thickness 2.5 inch SATA HDD/SSD. It doesn't take up too much space, plus you don't need any additional parts to make it work. Just plug it in, turn it on and it works. The drivers installed automatically, so that's always a plus when you don't have to search for anything new to make it work.
I Just bought this one. I like it I am using it to run my old computer as a virtual machine and it works good.