I did some digging into this subject about a year ago. First, I identified about a dozen places where I found my personal information and put the URLs into a spreadsheet. Next, I bought an Incogni subscription for a month, intending to follow up and see what they got rid of. After some time, little, if anything, was disappearing. As I recall, Incogni's user interface left a lot to be desired, and I found it very hard to tell if it was doing me any good or not. Eventually, I found a list of all the data broker sites that they target, and most of the ones I had found my info on were NOT on that list.
So I did some more searching, and among other things, found the "Big Ass Data Broker List":
BigAssDataBrokersList
Which is a huge list of known data brokers as well as URLs and instructions for how to successfully opt out of each one. Using that, I was able to manually get my info removed from all 12 sites where it had been found, all within just a few weeks. The actual work I did was maybe an hour, max. So far, none of them have re-surfaced.
I also found that EasyOptouts had on their target list nearly all of the sites that had my info. I sent them a couple of questions, and got well-written responses in a short time. I felt like I was dealing with one guy, or a very small company (which I like).
https://www.easyoptouts.com. At $20/year, they're WAY cheaper than all the others. I have not yet signed up with them, though, as none of my personal info has resurfaced on the web.
Google also has a free service where they'll notify you if any of your personal information shows up in any of their search results. They send you an email when they do, and you go to the "Results About You" link, review what they found, and request them to remove any or all of them. They usually respond within a day, almost always with "Removal Request Approved", and indeed the offensive URL is no longer found by searching google for your personal info. They don't actually remove the website with your info, just the search results, but I've had great luck going to each URL and explicitly requesting removal of my info, and I think it's been 100% successful.
Here's a Clark Howard article where I found out about Google's "Results about you":
Clark Howard
FWIW,
www.deleteme.com is NOT the one Leo (and others) are talking about. That site does appear to do personal data removal, but it looks like they charge $99 for EACH ONE they get removed! The one they really mean is joindeleteme.com. I'm baffled about why Leo (and others) never bother mentioning the URL for the correct one. First time I tried to find them, I found deleteme.com and saw the insane pricing, and just set the whole idea aside.
I hope this has been helpful.