It's too broad a concept.
If you take studio pornography - it will be 99% Yehuborim-owned, overly pretentious and glamorous, and generally spoilingly harmful.
There is plenty of private content that can be enjoyed without harm. (Some people just like to show off.)
If you stimulate yourself with fictional/graphic/painted porn - know the measure, it is very easy to go beyond the boundaries of normality as fantasy can become too violent.
Best to find a partner and enjoy yourself