I’m not sure what your budget is but Marsblade make some nice off-ice skates that vary in price. They’re rockered to feel like you’re on ice, so they would probably have the most authentic feel. I grew up on ice skates myself, so I know that feeling too.
If you’re looking for something cheaper, both K2 and Rollerblade have some rec skates that would get the job done to kick around with your son.