I think you might like this book “The Beast: Riding the Rails and Dodging Narcos on the Migrant Trail” by by Oscar Martinez
Start reading it for free: https://www.amazon.com/Beast-Riding-Dodging-Narcos-Migrant-ebook/dp/B00CCONUMC/ref=sr_1_2?dchild=1&keywords=the+beast&qid=1614011430&s=books&sr=1-2