Geo things

2d

• OpenDroneMap - create orthophotos
• QGIS - free GIS
• GDAL - manipulate raster and vector geospatial data in CLI

Python libraries

• rasterio - rasters
• GeoPandas - vectors

3d

Rather use .laz instead of .las, the space saving is yuuuge.

• CloudCompare for viewing .las/.laz files
• PDAL - Point Data Abstraction Library, low level CLI with lotsa functions
• laspy - Python las reader/writer