How do men manage acne scars?

I'm fortunate enough to have very little acne, but my boyfriend has had acne for a long time and still has a lot of acne scars. He's particularly concerned about the pits on both cheeks. I looked online and found that there are dermatological treatments like lasers and freckle lasers, as well as various at-home skincare routines. I'm curious to know what's actually effective.

My boyfriend doesn't use any special care products yet, just applying moisturizer after washing his face. I'd like to help, but what methods would be most effective for acne scars?

I think my boyfriend's confidence would increase significantly if his skin improved even a little. I'm also planning to continue to research skin care methods with him. What's the best way to manage acne scars?