RangusRPG

This mod comes with NPC's and a main questline baked in. You'll just need spawn them in using the Marketplace Hammer. See this mods EXTENSIVE guide to learn more: https://kg.sayless.eu/marketplace/#Start Page

You can do a lot of great stuff studying this page and can even build off of what I've done already if you want.

HINT You will need to be in debug mode for them to appear on your build menu.