My list of media co-ops is here:
UK Media Co-ops - Google Docs (but that link isn’t working so UK Media Co-ops - Google Docs )
I’ve been in touch with most of the more established ones and got a few of them to speak at events over the years too 
I kinda know Nafeez too (we’re “friends” on FB and follow each other on twitter and have communicated on and off over the years).