Wouldn't intimidate be better than investigation based on your background as a bouncer ?
I have intimidate from my class already, but I could probably switch them around. Well, maybe not since I don't think barbarian gives that, but maybe with the skill proficiency from human?
(EDIT: Yeah here we go....
From "Bouncer" Background
•Two skill proficiencies: Intimidation and Perception.
•Up to two of the following: Brewer's Supplies (tool) and Tapdancing Outfit (tool).
•A Feature (usually a non-combat benefit, such as having a contact, or getting access to shelter/healing): When standing guard in front of a path, gain advantage on Intimidate, Perception, and Insight.
•Human skill proficiency is Investigation
•Barbarian is Athletics and Perception.
Better.)