Grove Park Library is one that has been run by a social enterprise organisation for some years after Lewisham Council in South London decided they couldn’t or wouldn’t afford it. That organisation has pulled out at very short notice and the Council is now trying to find an alternative provider (it looks as though they won’t or don’t want to run it directly.) There is a Change petition with over 800 signatures, which you can find here: https://www.change.org/p/save-grove-park-library
And late off the mark we have a Lewisham one too: https://councilmeetings.lewisham.gov.uk/mgEPetitionDisplay.aspx?id=2088
There is also an Instagram account with links and updates
https://instagram.com/savegroveparklibrary?igshid=NTc4MTIwNjQ2YQ==