Ender 3 V3 SE/KE 90 Degree Gantry Stabilizer Brace (easier fitting remix)

I just modified it for myself in orca the way I like it more, nothing special, just more stiff and more forgiving in some sense because theres no corner that can get failed by print settings. Also now theres a bit of space where you can fit other gantry-bound stuff in, though probably youd need to resize it a bit if you use it with other accessories.
Either way I hope it would be of use to you in one way or another, the form is rather universal

More stiff and a better option for when your printer doesnt like printing corners, a bit of room for other accessories connected to gantry