You should also checl some past posts, like this one:
https://forum.atlas-games.com/t/plotline-need-more-ideas-my-players-should-not-read-this/776/1
This may give you ideas 
You should also checl some past posts, like this one:
https://forum.atlas-games.com/t/plotline-need-more-ideas-my-players-should-not-read-this/776/1
This may give you ideas