A free mod for Fallout 4, by Recluse.

In this mod, you can find a lot of new custom NPCs. They are all designed by the developer of this game and his team and are not just a collection of skins for your character. They are a real game. Lots More Settlers and Enemies mod adds over 350 new character faces for Settlers, Raiders, Gunners, CoA, BoS, RR, Minutemen, and more that include playable custom hair. Patches for Better Settlers, popular Minutemen mods, and Vault-Tec Workshop are included in the Far Harbor optional version and are compatible with other DLCs. Better equipment is also brought by the settlers. Non-Replacer.

It has also included Lots More Settlers and Enemies combined and then improves the functionality of the following: 

Beautiful Female Settlers

Beautiful Female Enemies

Lots More Female Hairstyles

Lots More Male Hairstyles

Lots More Facial Hair