If you are a resident of California, the state now has a portal where you can demand deletion of your personal data from 500+ registered data brokers with a single request form, for free.
https://hachyderm.io/@evacide/115823137786391729
Note: aside from this thread, there is also further discussion in the linked Mastodon toot.
Well, I put in a bunch of personal info and then it rejected two 2FA codes that it sent to my phone so I couldn’t submit at the end. Sigh.