Check out the website Common Sense Media. They do a great job of listing which movies are good for which age groups. You can also find lists of movies based on which streaming service you have access to.
I've really enjoyed The Mitchells Vs The Machines with my little guy lately.
As a child who wore down his Princess Mononoke DVD to the point that particular moments would skip or freeze each viewing, the only lasting impacts I've suffered is an inclination towards environmental terrorism and deep seeded short hair fetish.