which external hard drive is best to use with MacBook Pro M1?

Any usb drive will work. I would opt for a SSD over a HD for reliability and speed. Format whichever drive you get for your Mac using Disk Utility.

CL0BtakE wrote:

which external hard drive is best to use with MacBook Pro M1?

Best..?

There are many choices out there to numerous to itemize—

a recommendation search OWC/Macsales...well ahead of the curve all things Mac

External Storage - MacSales.com

Portable External Storage Drives - MacSales.com

OWC Envoy Pro EX - External Portable SSD Drive