I think I understand what you are asking. So let me see if I can clarify? You are worried about the brace obstructing access to the top of the overflow? Or the brace being in the way?
If so, I would suggest a Fiji cube overflow. The inside portion can be removed easily for cleaning, even with a euro brace. The shadow or ghost can also, but their design makes it a little tougher. I also prefer the Fiji, as the inside and outside sections are level. This reduces noise to almost nothing.
@dantimdad please correct me if I am wrong about their overflows.