There are numerous free websites that can assist in locating Latin American primary law as well as secondary information on Latin American legal topics.
Beginning in March 2020, a global team of law librarians and experts closely monitored the rapidly developing legal and governmental responses to the COVID-19 crisis in Latin America and the Caribbean. Biweekly reports were published on the group's website, Monitoring COVID-19 in Latin America and the Caribbean.
The Due Process of Law Foundation has published several digests on Latin American national case jurisprudence:
The 2013 Digest on Indigenous People's Rights compiles and analyzes high court decisions related to indigenous rights in nine Latin American countries. The countries covered are Argentina, Bolivia, Chile, Colombia, Ecuador, Guatemala, Nicaragua, Panama, and Peru. In Spanish only.
The 2015 Digest on the Rights of Victims is available in English.
Two digest volumes on International Crimes (2010 and 2013) are also available in English.
There are numerous blogs that focus on international law, and several that focus on Latin American law generally, and others on the law of specific Latin American countries. Many of these are in Spanish. There are also sites that focus on Latin American current events and politics and regularly update their content.