Archivist Wasp by Nicole Kornher-Stace

Goodreads Storygraph

"Wasp's job is simple. Hunt ghosts. And every year she has to fight to remain Archivist. Desperate and alone, she strikes a bargain with the ghost of a supersoldier. She will go with him on his underworld hunt for the long-lost ghost of his partner and in exchange she will find out more about his pre-apocalyptic world than any Archivist before her. And there is much to know. After all, Archivists are marked from birth to do the holy work of a goddess. They're chosen. They're special. Or so they've been told for four hundred years. Archivist Wasp fears she is not the chosen one, that she won't survive the trip to the underworld, that the brutal life she has escaped might be better than where she is going. There is only one way to find out."

...and so begins Nicole Kornher-Stace's Archivist Wasp series, which I found to be just ok. I can't put my finger on what, exactly, was missing for me -- but I know something was. will probably appeal a lot to Nona fans.