Python with a strict linter and type checker (eg ruff with the right lints on and ty with its stricter settings, or strict pyright if performance isn't too bad) works very well. Most of Python strengths (concise, large ecosystem, well represented in the LLM training data) while having good static analysis.
You don't need that, gets in the way more than it helps. Even Typescript isn't really needed, but at least it's decent devex unlike the Python typing stuff. What really helps is testing.