I had prepared a long post for you, but at the end I prefer not to take the risk.

You may believe or not believe that such exist, but EU is more restrictive. Keep in mind that US is a very rare animal where freedom of speech is incredibly high compared to other countries.

The best link I can point you to without taking risk: https://www.cima.ned.org/publication/chilling-legislation/

one thing comes to mind https://en.wikipedia.org/wiki/Legality_of_Holocaust_denial