The tape method works great for this. Search online for various methods of doing it.
Dry fire practice will get you comfortable finding the front sight with both eyes open. I've done thousands upon thousands of presentations from the holster or from compressed ready position.. find the sight, take the slack out of the trigger, break the shot (or not), return to ready. I think a double-action pistol works best as you don't have to re-cock it every time.