One thing that I’ve done at every wedding that I’ve photographed is attempt to photograph everyone who is in attendance in the one shot. The way I’ve done this is to arrange for a place that I can get up high above everyone straight after the ceremony. This might mean getting tall ladder, using a balcony or even climbing on a roof.
The beauty of getting up high is that you get everyone’s face in it and can fit a lot of people in the one shot. The key is to be able to get everyone to the place you want them to stand quickly and to be ready to get the shot without having everyone stand around for too long.
I found the best way to get everyone to the spot is to get the bride and groom there and to have a couple of helpers to herd everyone in that direction.