I've seen a fair number of stories that lean into that 'lost year' between 'A New Hope' and 'Empire.' The movie skips right to Hoth, so what was the Rebel Alliance actually doing? A lot of fanworks dig into the gritty logistics of setting up Echo Base, the constant threat of Imperial probes, and how the rank-and-file soldiers viewed this farm boy who blew up the Death Star. It adds a layer of political maneuvering and military fatigue that the film, by necessity, glosses over for a swashbuckling adventure.
Some of the more interesting takes focus on Imperial defectors during that period. Watching the Death Star explode on a holonet feed would have been a seismic event for mid-level officers across the galaxy. Stories from their perspective, grappling with loyalty and the sheer scale of the loss, flesh out the Empire as something more than just faceless stormtroopers. They become an institution full of people who might have just had their faith shattered, which makes the original conflict feel wider and more textured.
It's not always about big politics, though. I've read quieter pieces about the crew of the Tantive IV's families, or merchants on Tatooine who heard about the Mos Eisley cantina shootout. Those small, ground-level reactions to the events of the film make the galaxy feel truly lived-in.