Conspiracy thriller: When a hero confronts a group of enemies who are more powerful than themselves; whose true extent only he recognises. an example of this is Flightplan a 2005 thriller film directed by Robert Schwentke and starring Jodie Foster.
Psychological thriller: When the conflict between main characters is more mental/ emotional rather than physical. an example is Orphan a 2009 American horror and thriller film directed by Jaume Collet-Serra, starring Vera Farmiga.
Mystery thriller: Normally a film filled with suspense, where usually the main character attempts to solve a mystery. an example is Memento a 2000 American psychological thriller film written and directed by Christopher Nolan
After researching quite a few thriller sub genres the one that inspires me the most is a psychological thriller because usually it is this type of thriller that makes the audience more involved and more intrigued, taking them on a psychological journey of uncertainty throughout the movie.