Target Area Analysis
From reviewing the below geographic chart, the three highest populated cities—in order—are Sao Paulo, Rio de Janeiro, and Brasilia. In order to maximize consumer reach, it would be advisable to begin operations in these cities first. Once desirable results have been achieved and the process has been well-recorded and codified, operations can begin in the other high-population cities to yield similar results.
References
(n.d.). Brazil Cities Database. SimpleMaps. Data retrieved from https://www.simplemaps.com/data/br-cities