Many components of the golf swing can be preset at the setup position. Here is a tip I use (and Greg Norman uses) that can help get the left arm and hands and club in a nice position at setup to help with a squarer clubface and a squarer setup in a balanced look.
Understanding the divot can assist you in understanding just where the ball should be positioned in the stance. This will vary for everyone- so use this video to help you find where you need to put the ball in the stance
Getting the correct visuals of how the swing path functions is an overlooked facet of learning. Things look different from the golfers view. Training to see the proper visuals will help you improve.
A good grip is a great start to creating a better swing. My drill one helps the golfer mold their grip and here is another way you can learn to get your hands on the club properly.
Here is a perfect way to practice and learn where you need to aim and how you can get the ball to start on the correct path- with an added bonus of learning how to shape shots through the air
We often hear the weight should be back for woods and forward for short irons- here's the key to a better weight distribution at setup to help your swing stay balanced