Currently working on a college project on the English Working class from abt 1890 to 1950. I'm fairly early in my research progress and have gathered 6 or 7 secondary resources(some of which I'm not going to use:) E. P. Thompson, The making of the English working class. John Maynard Keynes, The General Theory of Employment, Interest and Money. Winston S. Churchill, History of the English Speaking Peoples Vol. IV: The Great Democracies. Thomas Piketty, Capital an Ideology. Jonathan Rose, The Intellectual Life of the British Working Classes. John M. Mackenzie, Imperialism and Popular Culture (Studies in Imperialism.) Karl Polanyi, The Great Transformation: The Political and Economic Origins of Our Time. Partha Sarathi Gupta, Imperialism and the British Labour Movement, 1914-1964.
What I'm looking for now is some primary resources: art, images, texts, or otherwise.
Have you tried looking at the footnotes in your secondary documents? I understand library access is limited, but surely you can email the research librarians at your college for help.
The British museums have a lot of online material, possible ones to check out would be the Imperial War Museum, the Museum of London, the Museum of Liverpool, I know from visits that all three have a lot of material about every day life. The Imperial War Museum and Liverpool will probably have material more specific to your time period than the London one.
You could probably find similar museums by googling the names of large British cities (e.g. Manchester, Glasgow, Bristol, etc) and "museum of".
Edit to add: also the Museum of London Docklands.