One good option is FTC action. They have worked on this in the past, e.g. https://www.ftc.gov/news-events/news/press-releases/2018/10/federal-trade-commission-g

One good option is FTC action. They have worked on this in the past, e.g. https://www.ftc.gov/news-events/news/press-releases/2018/10/federal-trade-commission-gives-final-approval-settlement-uber https://www.ftc.gov/news-events/news/press-releases/2018/10/... https://www.ftc.gov/news-events/news/press-releases/2018/01/electronic-toy-maker-vtech-settles-ftc-allegations-it-violated-childrens-privacy-law-ftc-act https://www.ftc.gov/news-events/news/press-releases/2018/01/...