Sorry, I should have seen and responded to this sooner.

For Refused - Rather Be Dead, Liberation Frequency, and Thought Is Blood are good starting points.

For Incendiary - Front Towards Enemy, Bite The Hook, and Echo of Nothing

For Propagandhi - essentially anything in their discography is good music and very politically charged. I find anything in their top songs to be good examples.

Refused

Incendiary

Propagandhi

I appreciate you mentioned Immortal Technique. Hip hop as a genre is generally very political, and doesn’t get a ton of recognition for it.