The Silmarillion is rich in stories. 2 Tragedy themed and 1 Justice themed. Just off the cuff the story of Hurin, until his point of capture, then the Fate of Hurin’s family centered around Turin, good two parter. A third and final part could be the story of Beren, linked through tenative connection to Thingal and Melian.
Paraphrased quotes from how I remember the stories.
On Hurin: “... and his ax rose 23 times and each time a great orc fell, and then overcome, his ax rose no more.”
On Turin: Nienor “Fair well twice beloved and then threw herself into the raging waters of Sirion”
On Beren: “... and Beren presented his remaining hand to Thingol and opened it, but it was empty, for the Silmaril he swore to hold in his hand was in his lost hand lying in the stomach of the Great Wolf.”
The story of Turin and Nienor would have been quite censored in the past due to its theme of incest (brother/sister); but that was caused by the dragon Glaurung, making them forget each other.