Try something like disk inventory X. It's a life saver.
1. Cmd-space for Spotlight
2. Type Storage Management
3. Hit Review Files
Now you can sort by largest files and quickly make an impact on space used.
The only problem I had with Apple's storage management utility is that it kept reporting a Steam game using 27G when that game was long deleted (and Steam itself was deleted). To resolve this, I had to go to the ~/Library/Application Support directory and completely remove the Steam folder (which didn't actually have that 27G game anywhere in it.)
On Mac OS, run for example:
ncdu -x --exclude /Volumes --exclude /System/Volumes /