Chess Openings Pro

Best Chess Openings for White: Full Guide - 365Chess

Chess Openings and Book Moves

We made a tool that lets you search the lichess game database by chess concepts. Link in the comments : r/chess

what do the numbers for each variation in chess opening mean by? - Chess Forums

Opening Move Popularity by Elo, using new Lichess Database data that goes down to 600 Elo : r/chess

Batsford chess openings 2 (The Macmillan chess library)

f4 - Chess Opening Database

Use Chessify Reference to Explore Chess Openings and Find Games

Opening Encyclopaedia 2023

Chess Repertoire Explorer