I'm not sure of you'll find the academic research you are looking for, at least out of the US, since the modern Conservative movement seems to have eschewed academia as filled with Liberals.
I haven't read this book yet, but I'd recommend Hillbilly Elegy, a memoir about JD Vance's life in Appalachia, It came out in 2016, and I recall folks thinking that it was a good read, even if they didn't agree with Vance's politics, and partially explained Trump's appeal to rural voters whose lifestyle bears no resemblance at all to Trump. The book has to be somewhat compelling, since Ron Howard made a movie out of it. And Vance parlayed it into a Senate seat, after all.