You can work with the GEOSLAM https://geoslam.com/what-is-lidar-and-how-does-it-work/

OR

the Geodetics’ Geo-MMS LIDAR imaging data

You can find some public labelled point clouds below but most of them are acquired by a terrestrial LiDAR (MMS):

- “Oakland 3-D Point Cloud dataset” terrestrial database: a 3D labelled point cloud of the Carnegie Mellon University Campus in Pittsburg (USA): http://www.cs.cmu.edu/~vmr/datasets/oakland_3d/cvpr09/doc/

- “Paris Rue Madame” terrestrial database: a 3D labelled point cloud of a street in Paris (France): http://www.cmm.mines-paristech.fr/~serna/rueMadameDataset.html

- “Paris-Lille-3D” terrestrial database: a 3D labelled point cloud of street in Lille (France): http://npm3d.fr/paris-lille-3d

- “IQmulus & TerraMobilita” stereo database: a 3D labelled point cloud of several streets in Paris (France): http://data.ign.fr/benchmarks/UrbanAnalysis/

- “Sydney urban object” terrestrial database: a 3D labelled point cloud of the CBD of Sydney (Australia): http://www.acfr.usyd.edu.au/papers/SydneyUrbanObjectsDataset.shtml

- “Vaihingen3D” airborne database: a 3D labelled point cloud of the city of Vaihingen (Germany) but you need to send a message to the data owner: http://www2.isprs.org/commissions/comm3/wg4/3d-semantic-labeling.html

- “Semantic 3D net” terrestrial database: a 3D labelled point cloud of various urban scenes: http://semantic3d.net/

- “DublinCity” airborne database: a 3D labelled point cloud of the city of Dublin: https://v-sense.scss.tcd.ie/dublincity/

- “TorontoCity” airborne database also exists but I didn’t found the link to download the dataset.

I hope it helps you…