Is there such a thing as a guest post community?

We have a real website with a good DA that regularly gets link exchange and paid guest post inquiries. We've already published a lot of paid guest posts, but we want to do more of these and it got me wondering if there exists a community where we can advertise or list our website as a site that accepts paid guest posts. I'm not talking about PBNs. I'm talking about real communities with real people who are looking for a link from a good DA website.