Hello everyone.

I am trying to set up a website for a competitive keyword which led me to a research regarding the backlink profiles of my competitors for some time. I have noticed that they used some sort of service which is a combination of PBN's and blog comments. The provider both manages and opens up new PBN's while actively looking out/commenting on different websites which have stellar SEO. I am sure about this because comments on both the PBN's and blog posts are the same for different websites (for example: there are two websites named x and y, which comment with the respective anchor texts "best hd movies" and "toothbrush buy" to the PBN's and the blog posts. This is in no way conclusive, but upon thinking about it, it is easy to see why this would be extremely uncommon, and given this happens for hundreds of PBN's and blog posts, it can be ruled as conclusive evidence)

The problem is that despite searching it for days and e-mailing the addresses on the PBN's, I failed at finding any lead to the provider. The catch is that almost all my competitors use the same provider since many of them appear at the same PBN's, so I'm out of ideas on what to do right now.

Example websites would be:

pipf com (which is now closed but can be accessed via the waybackmachine. This is another seo tactic that these guys employ. They shut sites in about three months. This specific domain had 90 DA on semrush which is just nothing short of incredible)

fpv org

remoteplay site

some blog sites these guys post on would be:

https://gennyhope org/bone-marrow-transplant-survivor-tips-to-stay-healthy-this-winter/

http://justinforjustice org/courrier-post-prescription-pain-pills-often-lead-harder-drugs-camden/

Now some of these PBN's comments have been cleared out to (In my opinion) game google's system. What I'm asking for is not the provider per se (even though that'd be GREAT), but providers that give service in the same way. I have searched for similar nofollow PBN/blog comment provider for countless hours but ended up nowhere. Thanks for reading. Please input anything you may know.