Affordable AA adoption??

My husband and I are new to the world of adoption. We have two biological kids and would like to welcome in a new member. My husband has always wanted to adopt, and after two difficult pregnancies, we are ready to take a different route to parenthood. We have decided to adopt an African American baby for many reasons. Unfortunately, money is tight. How much did it cost to adopt your sweet AA baby?? And what agency did you love?? ( pm me, please :) Thanks for the help!!