Librarian Socialism is a user on anticapitalist.party. You can follow them or interact with them if you have an account anywhere in the fediverse.
@syndikalista maybe from the french network, we have lots of them (search for "SCOP" and stuff, but I think they are also 75% bullshit)
@syndikalista
still no in mastodon... there are some.. checkout ecobytes for instance from germany...