The books by Vigorito and Dearing are quite good.
Best book on Sicilian dragon?
Good Chess Openings Books For Beginners and Beyond...
https://www.chess.com/blog/RussBell/good-chess-openings-books-for-beginners-and-beyond
search 'Dragon' and/or 'Sicilian'
Gawain Jones books on the Dragon are good but too deep for amateur players.
Giris chessable course is also good if you are looking for fresh, less theoretical alternatives to the mainlines
The best book is... not a book, but a data base.
A book is obsolete while in print.
Look at a data base and study grandmaster games.
https://www.chessgames.com/perl/chessgame?gid=1018628
The title itself ..im planning to buy it ..
suggestions from people who actually read it would be useful