Better Automatron Weapons
If you own the Automatron DLC, you'll want to consider this mod from Testudini.
The Better Automatron Weapons seeks to re-balance the weapons that arrived with Bethesda's DLC back in March. Specifically, it tweaks the Tesla Rifle, Salvaged Assaultron Head, Mr. Handy Buzz Blade, and Assaultron Blade.
The mod is aimed at higher-level players who want to add a little more power to these weapons. There are also some smaller tweaks and fixes that help to make the weapons better than the vanilla versions.
If you're unconvinced, watch this outstanding trailer.