Is there a substitute for almond flour?

I am trying to make a paleo vanilla shortbread, and the recipe calls for coconut flour. I have no cooking experience with coconut flour (and no coconut flour in my pantry) and I need the shortbread by Tuesday. I have seen people posting warnings that...

I'm trying to make French Macaroons. The recipe say to use Almond Flour but i'm allergic to it. Could I use all purpose flour instead? Will it effect the cookies to much?

Is there any mixture that I can make that consists mostly of almond flour and that can be substituted for regular all-purpose flour independent of what the recipe is for (e.g., things like cookies as well as things like bread)?  Preferably without xanthan...

I wanted to make some french macarons and bought the ingredients at kmart but they didnt have almond flour, I searched it up quickly and saw flour and almond extract can work but does ...show more

I have just learned that I have Celiac disease. I am not able to have any wheat flours. I am also fatally allergic to all nuts products which means I cannot have the most common substitute for wheat: Almond flour. Other than rice flour, does anybody...