Is there a CMS for multiblogging (collective blogs)?

Question

CMS

Good afternoon.
Tell me if there are specialized CMS for organizing multiblogs within one site.
I found typical extensions for Joomla and VP, but they are closer to a social network or bulletin boards.
Or maybe I set the search criteria incorrectly, and there are ready-made add-ons for popular CMS?
I realized that it was necessary to search for "collective blogs" on request.

Answer 1

www.instantcms.ru

Answer 2

multiblogging is built into WordPress, it makes sense to invent something

Answer 3

LiveStreet engine ala Habr

Answer 4

Try it: https://agouti.ru/
The script itself is under development (although the archive is already available), you can already approximately say what happens.
Creating, pursued the goal of making a simple, understandable design.