Lyorn Records

It should be noted that the Khaavren Romances are themselves books written (and read by) characters in Dragaera. The books we know are ostensibly translations of these Dragaeran works by SKZB.

A listing of those Dragaeran works mentioned in Five Hundred Years After can be found at the Invisible Library

Some of these titles and authors have real world equivalents.

For instance:

Redwreath and Goldstar Have Traveled to Deathgate -- Rosencrantz and Guildenstern are Dead by Tom Stoppard

Daridd of Diar-by-the-Bennaat -- David Dyer-Bennet