I wouldn’t name a child of mine “Aria”, as nice a name as it is, since Aria Giovanni is a fairly well-known porn star who has pretty well co-opted that first name for quite some time, I think.
But Ariel is still pretty “clean”, as far as I know.
Personally, I agree with those who have said that it sounds contrived or forced. Whether for a child or as a stage name, it sounds like someone tried too hard to come up with it.
I think Aria could be a very pretty and unusual first name. To keep it from seeming too contrived or stagey, as others said, I would follow it with a traditional middle name. Something like Aria Marie or Aria Lynn.
The Scooby Doo observation is dead-on. Too many “R’s”.