I see a ninite and Cho. but no immy version
that one is a super easy one to setup yourself.
just DL the latest MSI from github, upload it to immy, add your custom icon, and a snooty remark in the comments section and boom you’re done!
the hardest part is the dynamic versions script, and here it is for ya 
Get-DynamicVersionFromInstallerURL ‘https://github.com/windirstat/windirstat/releases/latest/download/WinDirStat-x64.msi’
That one is for the x64 version, replace accordingly with any version from the asset in Github