Whole bass, I usually bake in the oven with no foil on top.
All the above suggestions are fine. For variations, you can pop them under the grill, skin side down, after seasoning and putting a bit of butter on. Don’t leave them too long and don’t bother turning over.
I sometimes fry a bit of finely chopped onion/shallot with some mushrooms in a lot of butter, add the fish then pop in a bit of white wine and reduce. If the mood takes you, add some cream or even some stock. Home made fish or chicken is best, but I have used a lamb stock cube when nothing else was available, and it was lovely.