Finding a Donor

Hey ya'll! I'm Stephanie, 28 and my husband and I have decided to extend our family and have a second child.... only road block is, he is transgender ftm and can't have children. I plan to carry, but we are trying to figure out our best option for making this happen as cost efficiently as possible. IVF is out of the question, it's way too expensive... anyone have experience with finding a donor and doing at home insemination? What is the most successful route to take, how do you go about choosing and asking a donor, etc. appreciate any positive feedback out there... all we are looking to do is have a beautiful family and keep love alive, especially in our community! ✌