I'm looking for a front wing to replace dented one. Drivers side. Can anyone help, or direct me to a supplier? 

eBay is a good option, Search wing and search Forester SG breaking, should be able get a used one already silver factory paint and it fairly easy bolt on job .
Garage charge be about 1hr for that .
New wing and painting work out expensive .

Thankyou, found a couple ,both passenger side sadly, But I will keep looking, as it's not a hurry, just annoys me every time I have to look at mine!!🤬

That a shame, generally drivers side easier find as passenger side one that generally gets damaged more often.
Is a case of keep looking, also look for listings of whole car as a salvage listing and message the seller .
Is a few specialist subaru breakers so could contact them as well  .

Just be pleased it a easy bolt on panel thus cost can be fairly low and once replaced it can be perfect fix .