Options include… Volunteer. Donate. Ask the elected officials that represent you to choose open source software for government use cases. Encourage grants to fund open source. If you’re at a company, contribute back to open source.
Well, the greatest common denominator for political representation does exist. But it by its nature excludes free software as even a talking point. Namely that capitalism is mutually exclusive from free software. Capitalism hates free software to the point that free software cannot even literally get a word, a voice, or a conceptualization that can help refine it.
That leaves us with the only realistic options for supporting quality efforts in free software being volunteer work that isn't empowered. Everything goes downhill from there. Grants and company lip service are only superficial reactions to the free software problem.