I usually use ncdu. It has interactive UI. But I also like this rust app.
Do you know exa?
https://github.com/ogham/exa
I have alias ll='exa -l' already so using it all the time
@janci
I should probably mention duf in that context, by @fribbledom :
Speaking of which, I just noticed that duf mate it into the openSUSE Tumbleweed repo, and so did exa and ncdu, so now I'm installing them with no manual labour involved!