I am only familiar with Django and Rails, can't comment about Laravel.
If you are building a basic CRUD app, definitely stick with Rails. If you are doing some kind of CMS or need machine learning pipeline, go with Python.
A warning about Ruby/Rails: some folks have moved on to shinier languages/frameworks and as a result there are lots of unmaintained gems (gems are 3rd party libraries in the Ruby world) out there. For instance, I needed a curl wrapper written in Ruby. Nothing worked for me so I ended up forking Ethon [0]. I am hesitant to send PRs, since I doubt that they will get merged. Now I am maintaining two codebases at once. I will probably rewrite it from scratch at some time.
A warning about Python/Django: dependency management is kind of a mess [1]. See linked discussions [2][3][4][5].
[0] https://github.com/typhoeus/ethon
[1] https://xkcd.com/1987/ (Add pipenv and poetry to the mix)
[2] https://news.ycombinator.com/item?id=20672436
[3] https://news.ycombinator.com/item?id=18612590