Also available on the App Store but the sandbox requirement adds a minor annoyances with allowing it access to your disk.
Personally I find the big grid style visualizations make it easier to actually find large files that I don't need, like what you get with WizTree on Windows, but I'm not sure there's a current Mac option. I think DiskInventoryX is gone, but maybe Grand Perspective is still around?
Dear DaisyDisk developers: sorry, if you don't let me verify that it does what I need it to, I'm not paying.
It's definitely more for the audience that enjoys sleek, convenient interfaces over tiny files sizes though ;)
(It uses Electron for the UI, Rust for the disk scanner)
https://diskatlas.com/ It's in beta now, so I'd love feedback from anyone who wants to try it.
I go into list view, turn on "calculate all sizes", sort by size, and just go down the list, expanding and collapsing directories with the left and right arrow keys to see what's in them.
du