The organizations and resources listed address civil liberties (rights guarantied by the constitution) and civil rights (rights guarantied by statutes). This is a catch-all category for organizations and resources that do not fall neatly in one, or would have to be included in all, categories.
American Civil Liberties Union
"Our mission is to realize this promise of the United States Constitution for all and expand the reach of its guarantees."
The Legal Defense Fund Cases and Papers
https://www.naacpldf.org/case-issue-search/
Resource Page for Cases and Papers from the NAACP Legal Defense Fund
National Lawyer’s Guild
“Our aim is to bring together all those who recognize the importance of safeguarding and extending the rights of workers, women, LGBTQ people, farmers, people with disabilities and people of color, upon whom the welfare of the entire nation depends”