KlipperScreen
KlipperScreen is a touchscreen GUI that interfaces with Klipper via Moonraker. It can switch between multiple printers to access them from a single location, and it doesn't even need to run on the same host, you can install it on another device and configure the IP address to access the printer.
Documentation
Click here to access the documentation.
Inspiration
KlipperScreen was inspired by OctoScreen and the need for a touchscreen GUI that will natively work with Klipper and Moonraker.