There are a ton of settlement mods out there but many of the awesome ones aren't available for the PlayStation 4. This one is.
First, it gives settlers a real name. In the vanilla version of the game, everyone is called "Settler." That's a huge change but that's not all.
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The mod also increases the number of different variants of settler appearance so you'll rarely, if ever, run into two settlers named Aidan that are dressed the same.
The mod also adds child settlers that you can move between settlements. You can also assign them to farm your land.