In 'The Lord of the Rings' which mythological creatures live at Rivendell?

Rivendell is an Elven realm in Middle-earth, a fictional world created by J. R. R. Tolkien. It is an important location in Tolkien's legendarium, and is featured in The Hobbit, The Lord of the Rings, The Silmarillion, and Unfinished Tales. It was established and ruled by Elrond Half-elven in the Second Age of Middle-earth (four or five thousand years before the events of The Lord of the Rings), and was protected by the powers of its lord and his elven ring Vilya.

Elrond lived in Rivendell with his family — his wife Celebrían (until she departed for Valinor), their sons Elladan and Elrohir, and their daughter Arwen — as well as a sizeable number of other Elves, both Noldor and Sindar. In addition to the family of Elrond, notable Elves who lived in Rivendell included Glorfindel, Gildor, and Erestor. In some writings, featured in Unfinished Tales, Galadriel and Celeborn also lived in Rivendell for a time before they became rulers of Lothlórien.