I have been looking into what protest songs/chants have been used in the past five to ten years. Researcher Noriko Manabe from Indiana University has a recent journal article and a set of posts on Medium collecting songs and chants from US protests since 2017:
Journal of Music and Politics: Chants of the Resistance: Flow, Memory, and Inclusivity
Medium: Collection of posts on chants and songs since 2017
Also, I found these links:
National Women’s History Museum: Brief overview of protest songs
The Commons Social Change Library: Listen and Watch to 40 years of Australian Blockading Songs