I just powered through the first five books of the Temeraire series; if you like proper British gentlemen, the Napoleonic wars, civil rights struggles, and also dragons, they are pretty great.

Part of the back of my mind thinks of Temeraire as a budding FAI; incredibly powerful, and with a fairly different set of preferences from most of society, and ends up making some big changes as a result. He doesn't undergo self-enhancement and spiral out of control but there's a very strong Sense That More is Possible, and the struggle to do the right thing as the Only Sane Man is basically the whole plot.