Reclaim the Records and I do a loooot of the same work but it's separate enough that we don't really interact much. But I'm a big, big fan of their work and have had a couple light chats with the founder a couple times. She's great and yeah, wonderfully aggressive. Her work's the sort of foundational work that enables so much.
Muckrock and I go back quite a long way! Sending about 200 requests through them later this month :)
Love the Muckrock love, they are a treasure.
Lucy Parsons Labs: https://www.lucyparsonslabs.com/donate
Chicago Appleseed: https://www.chicagoappleseed.org/ways-to-give/
Invisible Institute: https://invisible.institute/donate
Unraveled Press: https://unraveledpress.com/support-unraveled/
All four are great. One is my employer. Unraveled Press would benefit the most from donations.