Some worthy software/#FOSS and freedom-related projects that accept #bitcoin donations:
The Internet Archive: https://archive.org/donate/cryptocurrency/ (1Archive1n2C579dMsAu3iC6tWzuQJz8dN)
The Tor Project (via BTCPayServer): https://donate.torproject.org/cryptocurrency/
The Free Software Foundation: https://my.fsf.org/donate
The Electronic Frontier Foundation: https://supporters.eff.org/donate/
The Human Rights Foundation: https://hrf.org/btc