Research into People Of Print

 Run an online shop similarly to Print Club London. They also run serveral publication for example Print isn't Dead and a series of books.
They seem to be a smaller group compared to Print Club London but still a collective of a group of different designers and illustrators who run a print room along side and promote themselves and other artist through that.

Struggling to find a person to target to ask about interships so I may just have to send a collective email. Not sure what kind of internship they offer, but it could be a mixtrue of editing or printing. Worth a try anyway.