Rise Against & Rage Against the Machine are kind of mainstream at this point, but they go hard and have a message.

In addition to the what others have said: MPRNews is still decent (not to be confused with NPR which has been less reliable of late). Unicorn Riot is great for live on the ground coverage, editorially they can be all over because of how they're organized though.

If you check my “following” and “followers,” you’ll find all the ones I’ve connected with so far.