If your sources all agree with each other perfectly, you might only be reading one source.

Sources that repeat each other exactly are often one source wearing several names. Agreement feels like confirmation, when what you actually have is a single claim copied forwards, and the apparent weight of evidence comes from repetition. Genuinely independent accounts nearly always disagree somewhere in the detail.

Trace the next thing you believe back to where it started. If three articles cite the same study or the same post, you hold one piece of evidence. Go looking on purpose for something written from a different starting point.