The ESP32-S3 is pretty flexible, but there are still pins that should not be used. I’ve always found the Random Nerds page page really useful for the old ESP32.
So I’ve made one for the ESP32-S3 - https://github.com/atomic14/esp32-s3-pinouts
Feel free to open up PRs/Issues if you see something wrong or think it can be improved. It would be good to make this a “living” document.
There’s a lot more info at the GitHub repo, and this image is available as a high res PDF.