Yuri Herrera's Signs Preceding the End of the World is a short novel about border crossing, by a Mexican writer, with a tough, engaging protagonist. It's somewhat surreal, as seems appropriate in our times.
Cristina Henriquez's The Book of Unknown Americans follows Latinx families/individuals from different countries, all living in the same apartment building in Delaware, and is great for surfacing cultural differences, hostility and caring among immigrants arriving decades apart. My students in a course on immigration loved it.
I have two texts that might fit the bill, both of which I've used in introductory composition courses at the community college where I teach:
• Hector Tobar, The Barbarian Nurseries
• Brando Skyhorse, The Madonnas of Echo Park
The Devil’s Highway is great, but not only about the migrants, but about the Border Patrol agents too. Excellent writing.
Ruben Martinez’s Crossing Over (Nonfiction) is excellent too.
Reyna Grande’s The Distance Between Us (Nonfiction) is another beautifully written memoir.
Under the Feet of Jesus by Helena Viramontes looks at the experience of a migrant family.
Tomas Rivera’s “y no se lo trago la tierra” is a classic. It has been translated into English as “And the Earth Did Not Devour Him” and by Rolando Hinosa as “This Migrant Earth.”