There's already a question on Stackoverflow on this. But it was asked 6 years ago, and the latest most upvoted answers are from 2017-2018.
Also, I am not very happy with any of the most accepted answers, one version has a few bugs, another one is old and clunky.
So I'm asking again, are there any more up-to-date versions of a (simple) variable inspector in Jupyter Notebooks?