Hey!
I’m a rising junior in college. I’m a double major in Political Science and Spanish Literature, currently doing some preliminary research about Ph.D. programs in Hispanic and/or Luso-Brazilian Literature and Cultures. I am interested in 20th-century Latin American literature and the Latin American Boom. I am also interested in 20th-century Brazilian literature, immigration narratives, and representation of race/ethnicity in Latin American literature. Apart from this, I am also interested in Latin American urban music cultures (reggaeton, funk, reggae en Español, dancehall etc.)
Do you have any suggestions for Ph.D. programs that I can look into that match some of my interests? I am not yet sure which Ph.D. track I am going to pursue yet, so I am open to all suggestions.
A little bit of background info: I have a 3.60 overall GPA, and my Spanish Literature major GPA is 3.85. I plan on increasing both of those. I am also currently taking a DELE C1 preparation course at a university in Ecuador. I am fluent in Russian, German, and Portuguese, and I am working on my French.
In terms of grad school applications, what should I focus on?
Looking forward to your responses. 
UCLA? My dad went there and studied Spanish. His focus was on 20th-century Latin American literature
Are you reading scholarly work in your field, written by scholars of Spanish/Portuguese literature and Latin American culture? If not, start there - start seeing which scholars are doing the work that seems really interesting to you. That will give you a clue about where there are people who are teaching the classes and who can advise you to really dive into the work that you’re interested in. In the humanities your department overall may be more important than a specific advisor (in the social, natural, or physical sciences I’d tell you to look for someone who could be your principal investigator/advisor). Still, you’re going to need some people who work in areas that are closely related to yours to advise you through your PhD, so you need to find out where people are doing the work that you want do.
You probably have access to scholarly literature on the topics you listed through your university library, so you can start there. Another tactic to take is to go through a list of Spanish/Portuguese literature programs or Latin American studies programs (the NRC ranked them: http://www.chronicle.com/article/nrc-rankings-overview-spanish/124661) and start exploring the departmental websites to see what professors are doing research in and what classes are taught. (If you find departments that seem promising, you may also want to look in adjunct departments - like comparative literature or ethnomusicology - to see if there are other professors you could put on your PhD committee or whose classes you could take to round out your experience).
As a side note, it’s just important to note that the academic market in the humanities is really harsh and it’s very difficult to get a job as a professor teach literature. Perhaps easier for non-American or British literature, but still.