Bridesmaids in different provinces - best way to coordinate dresses!

I have 6 bridesmaids. 4 of them are here in Ontario, one is in Nova Scotia, and one is even in Boston. We chose David's Bridal, as they have locations all across Canada, and even in the States! And none of them had any trouble finding the dress we picked

I have 2 local bridesmaids and one distant. I went shopping with the two local ones and chose the designer, material, length and colour I liked. They can choose the style. Most designers have their dresses at multiple stores. I checked with the store my distant bridesmaid is closest to to see what designers they have. Then, I looked at dresses here from that designer. I wanted my bridesmaids to be able to try on the dresses, so I opted out of buying online. Although, one of my bridesmaids did find her dress for sale online and it is the same designer (not a knock-off). I had checked out David's Bridal as well; the closest colour wasn't what I wanted and the two that tried on dresses there did not like them.

I had 2 bridesmaids on 2 continents so I feel you. I decided on a few dresses I liked from David's Bridal (one bridesmaid was in Calgary so I knew there was a store she could visit) and they chose which one they like best. My BM that lives in South Korea sent me her measurements and I ordered the dress for her.

We are going with azazie.com. The only downfall to using them is that they only ship to the states so we have to drive to pick them up. It's super difficult to even get their attention to order the damn things.

I had BMs on different continents so I went with David's Bridal. Giving each girl a color and fabric and length and then letting them choose their own dress style could be an easy solution, as would Azazie or the Dessy Group.