The one that works for you. The best practice is being aware of your every thought, word and action. A constant alertness. Being in the present. When you are established in the present, through constant practice, you do not need to practice any other meditation technique. When you are a witness to your own thoughts, words and actions, you are in the present. Awakening will dawn upon you automatically, just by being in the present consistently. When you are in the present, karmic accumulation through unconscious action will also cease to exist. The present is your real gift. The real gift of being in the present is awakening.