https://www.nexusmods.com/fallout4/mods/10075/
First, I recommend using it in a new save game to make sure it installed correctly to avoid any bugs to the workshop menu due to any conflicts with other settlement mods.
One of the NPCs you can hire is an Undertaker. The best mod for that NPC is the following for everything maxed out with all perks.
Download Links:
Links are hidden from guests. Please register to be able to view these links. Copy and paste in Notepad, save as UNDERTAKER.BAT, place it into the Fallout 4 install folder, press ~ to access the in-game console, click on the NPC with your mouse pointer, type in BAT UNDERTAKER then press the ENTER key.