It's called a "consumer group" or "consumer organization". These already exist. [1] In the EU these groups already take action on behalf of consumers. [2]

That doesn't mean they don't exist in the US. They do. For instance Consumer Watchdog. [3] This group does critically look at business practices and models of big tech. [4]

Another example would be the Consumer Federation of America. [5] This organization is an umbrella that federates plenty of local and regional consumer groups. [6] The CFA also does a ton of lobbying with the FCC and other departments. [7]

Those are the more "generic" consumer groups. Looking at specific "consumer groups" that lobby on behalf of technology consumers, the most visible organization would be the Electronic Frontier Foundation. [8]

If you want "discussions with Google" in the most broad terms. That's what Congress and the EU Commission have been doing with their string of hearings last year. Both public bodies are still build on the idea that they represent millions of people through the vote. If consumers want to engage in a discussion with a multi-billion dollar industry on equal footing, public hearings and investigations would be how that goes down.

[1] https://en.wikipedia.org/wiki/Consumer_organization#United_S... [2] https://www.reuters.com/article/us-eu-google-privacy/europea... [3] https://consumerwatchdog.org [4] https://consumerwatchdog.org/privacy-technology [5] https://consumerfed.org/ [6] https://en.wikipedia.org/wiki/Consumer_Federation_of_America [7] https://consumerfed.org/issues/communications/ [8] https://www.eff.org/