According to the shooting characteristics of this occasion, it is best to choose a lens with a relatively large zoom, which can not only take into account the scenes with many people and large scenes at the wide-angle end, but also capture some festive and cheerful facial features of a couple or guests in the distance in various scenes and beautiful or specially arranged small scenes in the wedding ceremony, thus enriching the whole wedding celebration scene.
For the Canon 60D camera in APS-C format, please choose a lens with larger zoom ratio, such as 18~200, 18~ 135, as long as conditions permit. If you really don't have it or can't borrow it, the lenses of 18~85 and 18~55 are actually ok, but the photos you take are not as rich as the big zoom, but as long as you take them carefully.