Benvenuto a planDisney, Marco!
Thank you for stopping by with your question! Like you, I have a kiddo near your son's age who is not a fan of roller coasters. Walt Disney World Resort has this great service called Rider Switch, where the parents can take turns riding an attraction and one parent/guardian can stay with the child. When you arrive at an attraction, let the Cast Member know that you want to use Rider Switch (if available), and they will have one of you walk to the waiting area with your son, and the other parent can go enjoy the attraction first. Check out this list of attractions that offer Rider Switch.
Some attractions I think your son will enjoy experiencing include:
To experience all of these amazing attractions, consider purchasing
Lightning Lane Passes when you arrive in the United States! This new feature on the My Disney Experience mobile app allows Guests to reserve up to three attractions at a theme park. With Multi Pass, you will be able to reserve available attractions at the second theme park you visit that day once your first attraction experience is redeemed. For top-tier attractions, consider purchasing the Lightning Lane Single Pass, and enjoy up to two attractions per day (subject to availability).
Marco, thank you again for stopping by planDisney! If you need additional pixie dust to plan your visit,
send me questions at any time. You've got a friend in me!
Choose Magic!
Frances