As far as I can tell, I have not used, or even handled, every model, Tramontina makes solid and functional machetes and other metal goods. Being inexpensive, while maintaining useful function, doesn't hurt either.

Inexpensive means you can stuff one in each vehicle and scatter them around the garage and barn so you always have one when you need one.

Or, if you plan for your emergency response to be a group thing, you might lay in a stockpile for your people. If your plans run toward the even longer term a dozen good machetes might be both useful and useful as trade goods.

Greased, wrapped and kept dry they should store indefinitely. Maybe gain some product synergy by laying in like number of Handy Files, two-sided flat files with a built in handle that are inexpensive and just the thing for sharpening a machete.