metal knobs are your only option
https://www.amazon.com/Stainless-Universal-Replacement-Enameled-Cast-iron/dp/B08DNBKGB8
I have a Le Creuset and just remove it when I put it in a hot oven (such as for bread-baking). I put aluminum foil in the little hole.
LOL, those are certainly cute, but I agree, they only say the dimensions for the plain circular knob, not the others.
At that price, you'd want to be sure!
but I would think about it if there was a dragon, and I don't even have a single Staub pot.