Here are some options:
Formal:
* José: This is the most common and formal equivalent of "Joe" in Portuguese. It's a popular name in Portugal and Brazil.
Informal:
* Zé: This is a common nickname for "José" in Portugal and Brazil. It's a more casual and friendly way to address someone named José.
* Jô: This is a less common nickname for "José" in Brazil.
If you're referring to "Joe" as a generic name for a man, you can use:
* Um homem: This translates to "a man."
* Um rapaz: This translates to "a boy" or "a young man."
Example:
* "Joe is my friend."
* "José é meu amigo." (formal)
* "Zé é meu amigo." (informal)
* "Um homem é meu amigo." (generic)
Remember that the best way to say "Joe" in Portuguese will depend on the specific situation and your relationship with the person you are talking to.