One way to learn to write good beginnings is to see how the professionals do it. Although some do it better than others, I learned a great deal about beginnings by reading only first paragraphs of half a dozen books every day for a week.
Why not try my method? As you read, ask yourself these questions:
• What makes the opening strong?
• Does this paragraph fulfill the three purposes?
• Why does this opening hold my attention? (Or why doesn't it?)
• How could I have made the beginning stronger?
Wise writers willingly learn from the best.