This Couples from Harry Potter photo contains
business suit, dress suit, full dress, tailcoat, tail coat, tails, white tie, white tie and tails, suit, and suit of clothes.
There might also be
three piece suit and slack suit.
Harry Potter's Canon, Movie-Canon, & Non-Canon Couples spotted in this video are: Harry & Ginny, Ron&Hermione, Neville&Luna, Remus&Tonks, Bill&Fleur, Voldemort&Bellatrix, Cedric&Cho, Severus&Lily, Draco&Pansy, Fred&Angelina and more couples