Sites like amarantas.org

Chayn, a global nonprofit creating free online tools and resources to help survivors of gender-based violence heal

The official website of Universidad de los Andes, a Colombian university, with news, events, research and fundraising campaigns

Cuestión Pública, a Spanish-language news magazine on Colombian politics, public affairs and press freedom

Afrofeminas is a Spanish-language online magazine, founded in 2014, on Afro-descendant and Black women's feminism in Spain

Stockholm Center for Freedom, a news website reporting on human rights, press freedom and political repression in Turkey

OpenRefine is a free, open source desktop tool for cleaning, transforming and extending messy data

Science for the People, a radical science-activist organization and magazine on science, politics and social movements

New Eastern Europe, an English-language political and cultural journal on Eastern Europe, published in Kraków with issues on regional affairs

I cannot tell from these pages what the site covers beyond a contact page, so the answer is:

Rocket.Chat, an open source team chat and collaboration platform for secure, self-hosted government and enterprise communications

Bellingcat, an independent online investigations collective publishing open-source research, verification guides, and reports on power and accountability

A American political news and analysis publication on Substack, with video, live events and newsletters by Sarah Longwell, Tim Miller and others

Low-tech Magazine: an English-language magazine on solar-powered, low-energy technology and sustainable living, with translated editions in German, French, Dutch and Turkish

A visual, open-source web publishing tool called Hotglue for building and editing websites directly in the browser

Legit.ng is a Nigerian online news site covering breaking news, politics, sports, celebrity, business and world stories

Nawaat, a Tunisian independent online news site and print magazine founded in 2004, offering analysis on Tunisia and the region

Everything is a Remix: a site selling creative AI workshops, courses and downloadable worksheets, with a video watch section

Charter'97 is a Belarusian-language and Russian-language news website covering Belarus, opposition politics and human rights

CU SENS is a Moldovan investigative journalism outlet publishing investigations, reports and fact-checks in Romanian and Russian

Verso Books, a London publisher of radical political and social non-fiction, with a blog and book club

The Hong Kong Democracy Council, a Washington nonprofit advocating for Hong Kong and Hong Kongers' rights, founded in 2019 by Hong Kongers in exile

Meshkal, an independent English-language news site reporting on Tunisia and the Maghreb with articles by staff journalists

Dyne.org, a digital community and free software foundry blog covering open-source tools, art, ecology and decentralized networks, by Dyne.org

Drop Site News, an independent online news outlet on politics and war, with video livestreams, interviews and reports by Murtaza Hussain and Sarmad Jawad

An independent English-language news and analysis website on Venezuelan politics and the Bolivarian Revolution, with a podcast, by editors Ricardo Vaz and Lucas Koerner

A Canadian civil liberties advocacy group's website on counter-terrorism, national security, and human rights campaigns, with campaign pages and reports

The Belarusian Association of Journalists, a non-governmental media organisation in Belarus, publishing news and statements on press freedom and journalists' rights

Mongabay, an independent online news outlet reporting on conservation, environmental science and planetary challenges through a network of local journalists

KRIK, a Serbian investigative journalism news site and nonprofit reporting on crime, corruption and government abuses

The Legal Resources Centre from Moldova (CRJM/LRCM), an NGO publishing on anticorruption, human rights and civil society in Moldova

GlobaLeaks is free open-source whistleblowing software for setting up secure, anonymous reporting platforms

A Romanian-language news platform from Moldova reporting corruption news and accepting reports of corruption and related offences, named Anticoruptie.md

The Free Press, a news and commentary publication with investigative stories, essays and podcasts by Bari Weiss and contributors

Project Gutenberg, a free online library of about 80,000 public-domain eBooks run by volunteers, founded by Michael Hart