Opening Tier List in Progress(Your thoughts on the ranking based on theoretical strength) : r/chess

The 5 Most Aggressive Chess Openings — The Sporting Blog

Chess is booming among teens. Here's why - Polygon

Best Chess Resources - Chess, PDF, Chess

Reddit Opening of the week - French Defence - Exchange variation

Vídeo on how to learn openings - Chessable

The Best Chess Openings . [OC] : r/dataisbeautiful

King's Cross: Chess Openings on the App Store

I made an open-source cheat sheet for most common openings to teach myself what can transpose into what : r/chess

I made a huge catalog of chess openings for beginner/intermediate players. : r/chess

Chess Opening Essentials - Volume 4: 1.c4 / 1. ♘f3 [Knight f3] / Other First Moves (Minor Systems) - The Ideas & Plans Behind ALL Chess Openings - Understanding the basics