The São Paulo City Hall has just released free LiDAR data covering the city on their digital mapping platform, GeoSampa.

Since the GeoSampa site is in Portuguese, I posted a short tutorial on how to access the data in the SPAMLab blog:

Also, just a few hours after the post went live, it received a comment from Fernando Gomes, who works at GEOINFO (the group maintaining GeoSampa) and shared a GitHub repository with a preliminary approach to analyze LiDAR data with Python and PDAL: Nice!

Hope it helps. Spread the word!