DuckDuckGo team member here - Personal Information Removal fully automates the process of opting out from data broker sites, all from your device. So you don't need to contact companies yourself. More about how that works at https://duckduckgo.com/duckduckgo-help-pages/privacy-pro/per...

I haven't used it, and only going off what is written, but:

>We scan dozens of these sites for your info and, if found, request its removal, even handling back-and-forth confirmation emails for you automatically behind the scenes.

I've used services included as a credit card benefit that do it automatically. At least, for a modest list of sites.