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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)

OverDisk works on windows, has a very small portable binary and does similar sunburst charts: https://overdisk.jaleco.com/

It hasn't been updated since a long time, but it works decently.

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...