not talking about diversity links.
Own private PBN? Or buying/renting someone's PBN?
Guest posts? Niche edits?
Or maybe tons of expired Web2.0s?
Sape?[/QUOTE
Owning private blogs is a good way than sharing PBNs... but it will be expensive to build and maintain it. Because we have to pay for hosting and updating contents frequently... between these two, you can go for shared PBNs.. but make sure about the manual review of the blog's quality!
And, Guest Post is a good way to increase your online presence and getting a targeted audience! But mixing with Niche edits will help to increase the authority in your industry!