If you are looking to support Black owned bookstores, here are some resources that may be useful.
Black owned bookstores https://aalbc.com/bookstores/list.php
Elizabeth’s of Akron (a portion of all proceeds goes to fund therapy for black women and girls) https://bookshop.org/shop/Elizabeths
In Colorado: https://www.shopatmatter.com/ or https://www.tatteredcover.com/