Hi,
I recently had the same problem and built something that worked, but is far from perfect. I'll attach a picture from studi.io with the bricks colored differently so they are easier to see. Unfortunately, I could not get the tiles to line up perfectly (in height).
It is built from tile 1x2, plate 1x1, bracket 1x1 - 1x1, and bracket 1x1 - 1x1 inverted.