Ikea Elkby Alex is the wall shelf turned desk monitor stand that you didn't knew you need or afford (monitor stands are expensive tbh). It perfectly fits a Dell P3421W and a
SIGFINN monitor stand, fixed height, white - IKEA
10cm lift Desk Shelf Monitor Stand - IKEA Hackers
Ikea Monitor Stand : r/3Dprinting
Make a Bauhaus inspired Computer Monitor Stand with a IKEA Burhult shelf by Joe | Download free STL model | Printables.com