I found these 36 basic plots on rpglibrary.org - you can find the original article here, but I致e copied them onto this site (a) for your convenience and (b) in case the original ever disappears.

Each one is organized as Main Conflict - Characters, Objects, Etc. that are involved.

Pick one and see if it yields anything interesting! :)

1. Supplication - Persecutor, Suppliant, a Power in Authority

2. Deliverance - Unfortunates, Threatener, Rescuer

3. Revenge - Avenger, Criminal

4. Vengeance by Family upon Family - Avenging Kinsman, Guilty Kinsman, Relative

5. Pursuit - Fugitive from Punishment, Pursuer

6. Victim of Cruelty or Misfortune - Unfortunates, Master or Unlucky Person

7. Disaster - Vanquished Power, Victorious Power or Messenger

8. Revolt - Tyrant, Conspirator(s)

9. Daring Enterprise - Bold Leader, Goal, Adversary

10. Abduction - Abductor, Abducted, Guardian

11. Enigma - Interrogator, Seeker, Problem

12. Obtaining - Two or more Opposing Parties, Object, maybe an Arbitrator

13. Familial Hatred - Two Family Members who hate each other

14. Familial Rivalry - Preferred Kinsman, Rejected Kinsman, Object

15. Murderous Adultery - Two Adulterers, the Betrayed

16. Madness - Madman, Victim

17. Fatal Imprudence - Imprudent person, Victim or lost object

18. Involuntary Crimes of Love - Lover, Beloved, Revealer

19. Kinsman Kills Unrecognised Kinsman - Killer, Unrecognised Victim, Revealer

20. Self Sacrifice for an Ideal - Hero, Ideal, Person or Thing Sacrificed

21. Self Sacrifice for Kindred - Hero, Kinsman, Person or Thing Sacrificed

22. All Sacrificed for Passion - Lover, Object of Passion, Person or Thing Sacrificed

23. Sacrifice of Loved Ones - Hero, Beloved Victim, Need for Sacrifice

24. Rivalry Between Superior and Inferior - Superior, Inferior, Object

25. Adultery - Deceived Spouse, Two Adulterers

26. Crimes of Love - Lover, Beloved, theme of Dissolution

27. Discovery of Dishonor of a Loved One - Discoverer, Guilty One

28. Obstacles to Love - Two Lovers, Obstacle

29. An Enemy Loved - Beloved Enemy, Lover, Hater

30. Ambition - An Ambitious Person, Coveted Thing, Adversary

31. Conflict with a God - Mortal, Immortal

32. Mistaken Jealousy - Jealous One, Object of Jealousy, Supposed Accomplice, Author of Mistake

33. Faulty Judgment - Mistaken One, Victim of Mistake, Author of Mistake, Guilty Person

34. Remorse - Culprit, Victim, Interrogator

35. Recovery of a Lost One - Seeker, One Found

36. Loss of Loved Ones - Kinsman Slain, Kinsman Witness, Executioner