This stand will hold your Ally / Ally X (or possibly Steam Deck / MSI Claw / Lenovo Legion Go - untested) at 20deg from vertical for easy viewing, while also supporting a USB hub so that it's not pulling on (and potentially eventually damaging) the built in USB-C port(s). Because the size of your USB hub is probably different, I have included an f3d file so that you can edit the parametric design.

If you want the same USB hub I have, you can get it here: (not an affiliate link)

https://www.amazon.com/uni-Charging-Thunderbolt-Aluminum-Pixelbook/dp/B08SVZFFPP

I printed with PETG, 0.2mm layer height, with supports enabled. Print such that if an Ally were being held in it, it would be vertical (the bottom of the part that holds the Ally should be flat on the baseplate).

Hope some of y'all find this useful!