Brideman Duties

Hello all! 😍
My wedding is now in one week! I'm running around doing all the little bits and it's so exciting. I have a question about my bridesman. Has anyone had one, if so, what did they do on the day? I'm going to ask mine to be first at the venue and open the car door for the bridesmaids and myself, and to welcome and direct people to the ceremony room. I'd like him to be more involved but I'm not sure how. My OH wants the best men to walk the 2x bridesmaids down the aisle, and I don't think my bridesman would like to walk on his own. What do you think? What could I ask him to do that might feel special?
Thank you in advance x