pr.com
In short: PR.com (pr.com) accepts press release/company profile. It is free + paid tier to submit, takes only a few minutes, and scores 45/100 on our impact ranking (long tail).
Create company profile and publish real news release.
Quality/newsworthiness matters.
Priority is later, which sets the band. It is free + paid tier and quick to complete, which adjusts it within that band. The score ranks your queue — it is not a measure of domain authority.