In world, everybody needs garment which offers people huge markets and billions of people are involved into garment business. Even though there are so many sellers, they can make profits.
However, do they those sellers find "Bule Ocean" for their sales? What's the blue ocean for apparel business? Sicne so many people sell shoes, dresses, etc., for example, can you plan to do the business which can assist those sellers? They sell dress, so you provide them with the model, labels, etc.
Above is just my thought. Please give your idea about this kind of business. The more, the better. I hope all people can get inspiration from this topic.