Melissa Martin does not write frequently, but when she does she is, right now, the only journalist I read and then re-read. She is currently in Ukraine and her dispatches are always moving.
The latest:

https://open.substack.com/pub/melissamartin/p/green-line
(I am not Ms. Kines, if you get a popup that she shared the post with you. No idea who that is, actually.)