Where should your head be towards during your stance while the bowler is releasing the ball. I am keen to know your opinion!

Head and eyes level
I liked getting my head close to my left shoulder as I was right handed .

Head in the same place over and over and over again. Important for consistant judgement of line and length.
Eyes level is recommended, but if you repeatedly have your Head in the same position every time the ball is released, your trained judgement will be as accurate as possible.

My recommendation is to have Head in a comfortable position, the same as your entire body needing to be comfortable, therefore using less energy when not executing a skill.

If you feel you are needing to move your head until it reaches a comfortable position, that is a waste of energy. Check your alignment of feet, hips, and shoulders at setup.

Potentially, try opening them up ever so slightly until your Head gets into a comfortable position immediately....

Comfort at crease is crucial to building consistent big innings as a batter.

In a eyes level position directly above your base of support and centre of gravity.