Card reviews were popular once, the top decks were Beatdown and its variants like Chaos and everything related to D.D. monsters, Monarchs and even more generic choices like Spirit Reaper and Cyber Dragon which had no direct synergy between them. We can't say they're frequent (even helpful) nowadays since each one of them is linked to a very specific deck-type, described by the strategies it uses to control the tempo of the duel and an identical winning condition.
The recent formats don't tolerate much innovation, cards that may seem good in a particular deck often wreck its consistence. If you want to improve yourself, better learn how to handle dominant deck genres and tech them properly. Side decking is included, hints and advice about terms like advantage, simplification, utility as well as playtesting and successful playstyle alterations during a duel.
Reading articles written by the DA team is a good place to start with. Make sure to visit this link, read some recent ones and suggest future topics on the appropriate post.