Harvester
The Harvester is a Unique Ripper with the Legendary Perk that gives you the chance to stagger your enemy with every hit. This makes melee builds a bit more viable out there in the Wasteland, as it does a lot of damage, and can keep opponents off-balance. Since you don’t actually swing it like a normal melee weapon (it’s like a chainsaw that is constantly revving), you have a very good chance of staggering those enemies since you’re able to hit so many times in a short period.
You can find this weapon in Echo Lake Lumber (west side of the island). Locate the huge house with all of the shelves on the first floor and make your way up the stairs. There is an Advanced Lock at the top of the stairs you can pick, or you can work your way around to get into the hole in the wall. Either way, you want to continue going up to the attic where you’ll find a chest with this weapon. Have fun ripping Super Mutants to shreds.