The GitHub page is linked at the end.
Some articles/content that relates to this ([4] is pretty cool and definitely check it out, so is [6]):
[1] https://brython.info/static_doc/en/intro.html
[2] https://towardsdatascience.com/run-python-code-on-websites-e...
[3] https://stackabuse.com/an-introductory-guide-to-brython
[4] https://rayluo.github.io/brython-project-template/
[5] https://github.com/rayluo/brip
[6] https://github.com/brython-dev/brython/wiki/Brython%20in%20t...
[7] https://academy.cs.cmu.edu/ (CMU's academy website runs on Brython)
Here's the GitHub page: https://github.com/brython-dev/brython/
And the Wiki, for examples -https://github.com/brython-dev/brython/wiki/Brython%20in%20t...
If you're familiar with all that's going on with the source code or at least some parts of it, and have time to spare, do take the time out to contribute to this project. It's pretty insane what they're building.
You can join their Google Groups forum here: https://groups.google.com/forum/?fromgroups=#!forum/brython