- To begin with existing open source foundations and activists. The Free Software Foundation easily comes to mind.

  - In a democracy, political parties - they already are behind most unions and merchant / business associations and even major non-profits. 

(Approaching a political party may be controversial for some, but remember that political parties are also an institution in a democracy. And we will need political will and legislative backing to assert some of our rights. And it doesn't matter if there are more than one such organisations - there is no one size fits all solution for everyone).