Mix it up. Break your network down into smaller networks with different specifications like: home page, inner page only, roll off the homepage links, built out MNS type sites with pages, rebuilt sites from archive.org, mixed theme (combine your theme to the previous theme of the blog), html sites, etc.
Be creative and just don't do the same thing for every site in your PBN. Generally, you'll want to reserve the homepage style PBN sites for your stronger domains.