It looks like Red Flag is an news opinion site. If you are interested in reading other people's opinions about stuff, sites like this are valuable.
However, if you are truly looking for a new source that reports different stories or stories not always covered in depth by the majors, you need to either go to local/regional news sources or international news sources.
When I really want to get a full spectrum of news reporting, I read not only domestic stories but stories in the various international news services/papers.
If you really want to understand stuff, you can't limit your research to only domestic sources.