I downloaded Lidar data from NOAA and am looking to use it to assess possible trout spawning areas in the Lower Saluda River in South Carolina. The data I downloaded is in TIFF format. What are some possible workflows that I could execute to assess the data to find spawning habitat in the river? I know how to perform trained classification with imagery on ArcGIS but are there other tools out there to undertake this task? Any help would be greatly appreciated. Thanks!