Aura Beam

Close your eyes and imagine a (your aura color) light engulfing your hand. Then imagine your palm channeling a beam at who/what ever is your target. Then imagine them being pushed back

Or if you want to make your power stronger and push them farther imagine the beam growing until you want it to stop. Then imagine them being pushed back. But be sure to watch out if you do this too much it will backfire and all that charged energy will hit you.