Still a bit unsure on what all cutters are good to have.
What if I need to cut appliance cords or thicker-gauge wire, etc? Or possibly steel wire?
Looking around online it appears that using cutters for PCB is maybe not as ideal as just scoring it and then snapping it off like a Kit-Kat at the edge of the table.
As a general purpose precision pair, get a semi-flush grind in a medium oval head. Please note that about every manufacturer uses their own terms, so read their catalogs very carefully to discern which is which. Then add cutters as needed (different sizes, different shapes, different types,...).
For appliance cords and heavier gauge wire, a standard pair of 6" or 8" diagonal cutters would do. For steel (hard wire), you'll need cutters made for this. Cutters have wire size ranges, some larger standard cutters can also do small diameters of hard wire. Check the specifications (will be available on decent brands).