What are some great chess openings that are worth learning?

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Avatar of Shelechess123
I have 800-900 elo and normally play blitz. I really want to improve and know which openings will be played against me and what are some forgotten gems of openings which are good to play. I’m willing to play gambits.
Avatar of RussBell

Chess Openings Resources for Beginners and Beyond…

https://www.chess.com/blog/RussBell/openings-resources-for-beginners-and-beyond