Glaurung and Nienor, fan-art by Me. (Digital-painting) : r/conceptart

Glaurung, the Great Worm : r/custommagic

Glaurung meet Turin by Quentin Champion : r/ImaginaryDragons

Glaurung, the Great : r/custommagic

My dragon brings fear in all free cities. Where is yours?” “Oh, here he is” : r/Silmarillionmemes

Turin confronts Glaurung by TurnerMohan : r/ImaginaryDragons

The Silmarillion - Turin vs Glaurung by Guillem H. Pongiluppi : r/ImaginaryDragons

Spike and Glaurung Petventure : r/DungeonsAndDragons

Then Fingon rode against him

Ashamed to admit I don't remember the specific artist, but here's Turin and Glaurung : r/TheSilmarillion

The Chiefest and Greatest of Calamities vs The Queen of Dragons, The Golden and The Mother of Dragons. : r/HouseOfTheDragon