I'll offer a generic comment, not a model recommendation. You should recognize an important difference between two classes of external drives. The common hard drives used in desktop machines use a modest amount of power to spin the disks and move heads, etc, but that is much more power than any USB 3 port can supply. So almost all external drives containing such HDD units (and that includes drives you may assemble yourself from a desktop HDD mounted in an external enclosure) must come with a power source - a "wall wart" or "brick" that plugs into the wall and the enclosure to provide the power it needs. On the other hand, the items sold these days as "Laptop Hard Drives" are specifically designed (using lower-speed HDD units and low-power components) to work perfectly within the limit of power available from a USB 3 port - that is, 5 VDC at up to 0.90 A. So look for the latter type, and not just an "external hard drive".
Bear this in mind also. A single laptop hard drive WILL use almost all the power available from a single USB 3 port. So you cannot connect that drive PLUS other items to an unpowered USB 3 HUB and expect them all to work, because the Hub's only power source for all attached devvices is the single host port it plugs into. IF you plan to use the drive WITH other items on a HUB, make sure the Hub comes with its own additional power source able to provide more power that the single-port limit.