You could try this Electron-based app SpaceRadar that should run on Windows, Mac, Linux https://github.com/zz85/space-radar
It has some support for sunburst graphs, flame charts, and treemaps (disclaimer, author here)
You can drill down in Diskitude by right clicking. I agree it's not as nice as Daisy Disk, but it's the best I've found for Windows (for my tastes) and you can't beat the price...
Here's what the app looks like: http://www.creativeapplications.net/wp-content/uploads/2009/...
Ever since I've ditched macOS I've been waiting to find a similarly designed app for Windows.
EDIT: Just tried Diskitude, but it's unfortunately nothing like DaisyDisk. It doesn't do the same drill-down DD does.