I seem to have trouble finding singleplayer missions with high replay value

Does anyone know any good dynamic singleplayer missions I can play that have friendly npc’s as well? I like the dynamic ones mostly so that I’m not doing the same exact path every time. I know there are a lot of dynamic multiplayer missions and I’ve tried to just make private servers but a lot of them don’t have any friendly npc’s to help out.

I do also play multiplayer but this is kind of an end of the night wind-down game for me right now so I’m mostly playing alone listening to my podcasts and flying around getting into dogfights.