Bismillah
as salam alykom
Sister Anisa, I think there is a lot you can do here, I suggest you run a search on the topic polygny and from there, I think ideas will come into your head, you will find new dimensions that you need to address, you will find new aspects that u want to cover, you will find that you are actually building more and more on your writings to benefit yourself, us and Muslims INsh a Alah. U might even feel that there are dimension, for which, you will need to consult other women in polygyny.
I m sure you have a lot to contribute Insh a Allah, may Allah Reward you for this endeavor and Makes it sincerely to Allah.