I think it would be a good idea to look at adding music papers such as the NME and Melody Maker as well as others, the stories and history of music and bands is in the pages of these papers and that is as interesting and important as other history in the newspapers on your files.
I would subscribe immediately if they did this! I contacted them with a similar suggestion recently and got nowhere.
Some libraries have Rock's Backpages which covers all the music press https://www.rocksbackpages.com/
Have you seen Rock's Backpages? https://www.rocksbackpages.com/
Many universities have it, and some UK public libraries