There is one career that I would be most worried about: internet writers.
If you do a Google search on any given topic, about 3% of what you read might be original reporting or research. The other 97% are just writers who just spend all day on Twitter and regurgitate facts. Or they just regurgitate Wikipedia, Reuters, or ScienceDirect with a tiny spin for SEO.
You know, the stuff ChatGPT is already insanely good at.
The industry has managed to support a huge number of this work for a while, and I think this could be the big reckoning.
We should also take anything we read about ChatGPT with a grain of salt knowing that the people most threatened by a technology are the people tasked with reporting on it.