Is there some way a Lightroom Classic user can skim through their pictures from a project (say in this case a graduation shoot from one day) filled with long, wide angle, several locations, portrait shots? I am using red, green, and yellow as a means of classification but there is a lot of files to go through, I feel as though I'm making it difficuilt.
In the Grid view of the Library module, look into using the Filter bar. It can filter thousands of photos by focal length, aspect ratio, ISO speed, aperture, shutter speed, and more. For example, you might find portraits more easily by filtering on longer focal lengths and wider apertures.
If your camera is equipped with GPS, you can use the Map module to look at photos by location.
Take a good look through the options and menus in the Metadata panel. There are many types of information you can enter to organize photos, and they work better in more workflows than the color labels.