This stand will hold a single slot PCI-e card.  I'm using it to hold an HBA expander, but it could be used with any card.  I uploaded a second design without the rear PCI finger holder if you're using in a case at the right height to look into your cases more robust slots.

This model holds a VER 011Pro riser card.  The original didn't have as many caps so didn't need the clearance underneath for the solder joints.  This is the one I have https://a.co/9miTzXr