I had my eye on 5TB ones - I need external, because I don’t have any more free HDD slots inside my computer.
Not sure the prices of them these days, but on my file server I have some 8-bay eSATA (port multiplied) enclosures, all you need is free PCI-e slots for the port-multiplier cards (and I’m sure there are USB3.0 options out there by now). Saves space compared to a bunch of separate enclosures, looks decent, runs well…