The Academic Support Librarian team have put together a subject guide on how to diversify your teaching, which aims to give staff and tutors an introduction on where to start with diversification, decolonisation and making your teaching and reading lists more EDI-friendly and aware. (EDI = Equality, Diversity & Inclusion).
You can access the guide here.
If you would like to read more about diversification, take a look at the recent Times Higher Ed article by Rowena Arshad, professor emerita at the Moray House School of Education and Sport, IECS, University of Edinburgh.