Rory C. Keel
Christopher Booker, in his book The Seven Basic Plots: Why We Tell Stories, outlines seven types of story plots.
Overcoming the Monster
The protagonist sets out to defeat something that threatens him/her or a group they belong to.
Rags to Riches
A protagonist is in some way misfortune, usually financially. Throughout the story, he/she acquires things such as power, wealth or a love interest.
The protagonist sets out to acquire an object or get to a location, facing many obstacles and temptations along the way.
Voyage and Return
The protagonist goes to a strange land and, after overcoming the threats it poses to him or her, returns with experience.
A humorous character faces a conflict that becomes more and more confusing but is at last made plain in a single clarifying event.
The protagonist is a hero who makes a mistake that brings about his/her downfall, evoking sympathy.
An important event forces the main character to change his/her ways, often making him/her a better person.