Amazon.com: EZDIY-FAB Vertical Graphics Card Holder Bracket Support with Multi-Angle,GPU Mount,Video Card VGA Support Kit with PCIE3.0 Riser Cable- Black : Electronics
NCASE M1 Vertical SFF Mini ITX Case GPU Mounting Bracket 3.0 – Mnpctech
The only viable (non-ugly) GPU Support for vertical mounts I could find. : r/nvidia