Made a whole repository on it https://radicaldefence.keybase.pub/
The primer stuff I'd recommend
Low intensity operations
U.S. Army Counterinsurgency Handbook
U.S. Army Guerrilla Warfare Handbook
FM 3-24 MCWP 3-33.5 Insurgencies and Countering Insurgencies
The anarchist writings on insurgency
Tom Nomad - The Master's Tools https://theanarchistlibrary.org/library/tom-nomad-the-master-s-tools
Institute For The Study of Insurgent Warfare https://theanarchistlibrary.org/category/author/institute-for-the-study-of-insurgent-warfare
via a reddit user