Aha, the Promare wip I was following is finished! Now, time to rec it. :D

Light Up The Sky by Oripoke. 81k, M, Lio/Galo + ensemble, postcanon.

Summary: A year after the second Great World Blaze, Galo is bored and Lio is nowhere to be found. When Lucia unveils her latest invention, it sends Galo far beyond Promepolis on a search for his wayward copilot. Meanwhile, Lio has bigger things to worry about, out on the fringes of society with all that remains of Mad Burnish. While the two track down missing Burnish and grapple with their feelings for each other, a ghost from Lio's past threatens to disturb the fragile peace they fought so hard to create...

Thoughts: This fic does a great job of keeping up the general feel of canon; by that I mean mechs and fire and stuff blowing up. Like, if there were a second film, a lot of the plot-related stuff in here would be things that I can see happening. Ori takes what we get with the worldbuilding and explores it a bit; there's a lot that the film doesn't show us, so it was cool to see someone play with that.

Also, Ori has a great voice for Galo. Some people dial him down too much, but in this fic, he's just right. And the friends-to-lovers relationship between Lio and Galo that plays out here is really nice.

Sooo, yes. Take a look at this one if you're familiar with the canon and are in the mood to sink your teeth into something nice and long! :D