To differentiate between reliable and unreliable sources in DYOR, you must always refer to news sites with an authority like CoinTelegraph, Coingape, CoinDesk, CryptoDaily, CoinMarketCap, etc. Moreover, you can refer to peer-reviewed sources like journal articles to further strengthen your DYOR skills. Just because a site has a correct information does not mean that it is reliable. Thus, ensure that a site covers wide topics and has in-depth, detailed reports and has been serving people for some time.