The more people show up at protests, the better. https://indivisible.org/ has local groups and lists of protests.

Orgs like ACLU are fighting legal battles, which cost money. If you can, donate.

The EFF has an article that explains the latest changes (and why they still oppose the bill): https://www.eff.org/deeplinks/2023/08/congress-amended-kosa-its-still-censorship-bill

And an article explaining the “original” bill: https://www.eff.org/deeplinks/2023/05/kids-online-safety-act-still-huge-danger-our-rights-online

* “original” in quotes because KOSA was created in 2022, rejected, then resurrected in 2023. This is the resurrected 2023 version.

If you oppose this bill, you can fill out this form to email your senator: https://act.eff.org/action/tell-congress-kosa-will-censor-the-internet-but-won-t-help-kids