The reaction of site.com to manga can vary greatly. It could be highly supportive, promoting and featuring manga prominently. Or it could have a more limited engagement, only showcasing selected titles. It all depends on their business strategy and target audience.
I wouldn't recommend looking for unblocked manga sites as they often violate copyright laws and can be risky. It's better to use legal and authorized platforms to enjoy manga.
I'd recommend KissManga. It offers a decent range of josei manga titles. But keep in mind that some regions might have restrictions on accessing such sites.