I agree that we should skeptically view claims that we can't personally verify by witnessing acts or reliable documentation such as police records filed, etc. Cross-checking is necessary. However, the only "legitimate" news source you came up with was The Wall Street Journal. That's a lot of responsibility for a single source of news that isn't in any way big enough or even attempts to cover all the news.
It comes down to trust. Who runs the source you used to identify the Tennessee Star as such? Where have they previously worked and what have they previously supported? Who is watching these watchers? To my mind, the legacy media has proven over time that they are propagandists first. However, it can still be useful for me to see what they put out.
Also, "non-legitimate" source sounds logically equivalent to, "trust the experts". Social Media broke the largest-scale government-run censorship network in modern history. Much of the media has still not reported on it because it's not in their best interest. Social media was the source of identifying the issues surrounding the COVID vaccine. When a nation is subject to censorship, Social Media is the only thing that gives people a chance at finding out any truth that those in control do not want known. It asks questions. It allows people to see if others have the same "non-narrative" suspicions. It can force MSM to address issues it would prefer not to address. If we ignore it, we don't get closer to the truth. The most important idea that needs to be remembered if we are to continue as a free and open country is that the answer to "bad information" is better information.