[elevanation]

Aside from the basic profile tips (such as https://www.cleverly.co/blog/how-to-optimize-your-linkedin-p...)

in my view it's worthwhile to speak with a professional career coach or mentor (I'm a career mentor and coach myself), because there are too many variables to cover in a list or even in a whole book.

This is because, even if you follow all the best checklists and guides:

1. You might not be making the right "impression" which matches for the role you wish you obtain

2. There may be something in your profile which triggers a red flag during the hiring process.

A good coach/mentor will help you fix such problems so you don't waste time, energy, and frustration.