As a RH Leg Spinner I have found the following field effective so far in my career. Nice mix of men it catching positions and saving runs.
Second Slip
Point
Deep Backward Point
Cover
Extra Cover
Mid Off (Deepish)
Mid On
Deep Midwicket
Backward Square Leg
Second Slip
Point
Deep Backward Point
Cover
Extra Cover
Mid Off (Deepish)
Mid On
Deep Midwicket
Backward Square Leg