The Space Between Worlds by Micaiah Johnson

The multiverse business is booming, but there’s just one catch: no one can visit a world where their counterpart is still alive. Enter Cara, whose parallel selves happen to be exceptionally good at dying–from diseases, from turf wars, from vendettas they couldn’t outrun. But on this earth, Cara’s survived. And she’s reaping the benefits, thanks to the well-heeled Wiley City scientists who ID’d her as an outlier and plucked her from the dirt. Now she’s got a new job collecting offworld data, a path to citizenship, and a near-perfect Wiley City accent. Now she can pretend… Read more.