I’m no expert when it comes to wedding planning, but I can offer a few tips that be useful to Jewish brides and grooms.
Not all grooms wear a tallit during the chuppah ceremony. Originally this custom was predominantly found among Sephardic Jews, but in recent years it seems to be gaining traction among Ashkenazi Jews as well.
If the groom will be wearing the tallit under the chuppah – right there next to the bride – obviously the color is important. And since some men are not so wise when it comes to coordinating colors, input offered by the bride/mothers/wedding planners may be vital. (For instance, a groom might not have the insight to realize that a bright white tallit does not work well alongside an off-white bridal dress, or vice versa.)
Whether or not the groom will be wearing the tallit under the chuppah, there is also a widespread custom for the bride (or her parents) to buy the tallit as a gift. Personally, if their budget allows, I think it’s a nice touch to add a tallit bag with the groom’s name embroidered on it, not so much for the wedding, but so that every Shabbos morning, when he takes the tallit out of the bag, it connects him back to his wedding day and his wife.