I picked one from the endorsement list, Other98

John Sellers is Executive Director and cofounder of Other98. John is a principal at Agit-Pop (agit-pop.com) and President of The Ruckus Society. John worked with Greenpeace during the 90s, directing their Washington DC office, sailing with their Marine Division and coordinating dozens of nonviolent actions throughout the US. In the last 20 years he has coordinated scores of creative actions for the dozens of organizations from the SteelWorkers to CREDO to SEIU to the Students for a Free Tibet.

https://other98.com/mission/the-team/

https://ruckus.org/training-manuals/the-action-strategy-guide/

In a 2013 article: The Soros-funded Ruckus Society is a 501(c)3 organization that is part of the Occupy Movement. (Occupy Wall Street)

https://www.investors.com/politics/editorials/soros-groups-escaped-irs-special-scrutiny/