Here are some options depending on the context:
If you're referring to a human being in general:
* Person - This is the most neutral and inclusive option.
* Human - Similar to "person," but emphasizes the species.
* Individual - Highlights the uniqueness of the person.
If you're referring to a male person:
* Male - Simple and direct.
* Man - While you're looking for a substitute, sometimes "man" is still the most appropriate word.
* Gentleman - Formal and respectful.
* Fellow - Informal and friendly.
* Guy - Informal and casual.
If you're referring to a husband or partner:
* Spouse - Neutral and inclusive.
* Partner - More modern and inclusive.
If you're referring to a worker:
* Employee - General and neutral.
* Worker - More direct.
* Staff member - Formal.
If you're referring to a specific role:
* Leader
* Manager
* Teacher
* Doctor
* Engineer
Important note: When choosing a substitute for "man," consider the specific context and the message you want to convey. Be mindful of inclusivity and avoid using words that might be considered offensive or outdated.