I am creating 10 similar sites with different scope which are all non PBN and 10 new domains (partial keyword matching domains). These 10 sites should be money sites and I will push them by adding some links from other PBNs later. These 10 sites are all serious sites without spam contents. If I inter-connect these 10 sites, will there be any benefits for all 10 sites due to the domain popularity? They are all on the same IP and same account. I saw such other projects with success, but I am not sure, if Google will consider this construction as spam?