I don't consider any single source or group of agreeing sources as credible in isolation. I've witnessed bad reporting from all major news sources. In cases where I wish to be well-informed, I'll seek out multiple sources, see if there's any disagreement, and try to figure out where and why the disagreement happens. When there is disagreement, I'll also examine the primary sources of the articles I've read. Do this enough, and you'll start to smell BS in most places.