top 10 chess openings

At the beginning of studying chess openings, it's best to study and play 1.e4 for white and 1. ...e5 for black and after when you feel you are much better than now you should find openings that you like and that lead to types of positions you like to play (open or closed). 

  Anyway, you asked for Top 10 chess openings, so my opinion is:

1. Italian game (Giucco Piano)

2. Scotch game

3. Ruy Lopez

4. Queen gambit

5. Sicilian defense

6. Scandinavian defense

7. Caro - Kan defense

8. Alekhine's defense

9. Petrov's defense

10. Reti's opening