Like all things in golf and the golf swing, nothing is set in stone or correct for everyone.
That being the case, here is a setup fundamental I have found to be consistent for a great number of people.
Make sure you are not aiming too far right (for a right hander). Make sure you know where you are aimed. You are not aimed where your foot line points, you are aimed where a line parallel to your foot line on the ball (target line) aims.
I had this debate with several readers a few months ago who said these lines run parallel and are only 2-3 feet apart out to infinity. Well, put down a shaft in front of your feet and then one parallel on the ball and tell me if they aim only 2-3 feet apart. If you want to look at it that way, your target line is where you are aimed and your foot line is only 2-3 feet left of that…but I digress.
The point is you are aimed where your target line aims and many people are too far right. That promotes over the top, snatching the club with the hands, hooks, push slices, etc.
More times than not aiming too far left is easier to play from than too far right. Obviously close to square is ideal, but picking the lesser of two evils, too far left is more manageable.
If you aim too far right, make solid contact and manage the ball around the course…great, but if you are having some problems, check your alignment and make sure you are not too far right…and make sure you are checking where your target line is.
A shaft placed parallel to your foot line on the ball.