Size 12-16 Brides - Dress Shopping?

Hi all! Brides 12-16 or beyond, where are we shopping for dresses that were actually designed to flatter and support? I went to a sample sale and almost everything I tried on had absolutely no support or structure - definitely made for smaller brides in mind.

Budget: Up to 3k MAX
I’d prefer not to pay for an appointment, but open to it for the right studio.

THANK YOU!!!!