However, depending on the context, you could use these options:
* Group: This is a general term and could work in many situations.
* Party: This implies a social gathering of bachelors.
* Stag: This is commonly used for a group of bachelors at a stag party.
* Crew: This suggests a group of bachelors who are close and work together.
Ultimately, the best collective noun to use will depend on the specific situation and what you are trying to convey.