Congratulations on opening your first boutique! When it comes to purchasing wholesale clothing items for your boutique, there are a few different options to consider. Here are some suggestions:

1. Trade shows: Attending trade shows can be a great way to connect with wholesalers and suppliers in person. You can see and touch the products, and have the opportunity to network with other industry professionals. Some popular trade shows for fashion include Magic, Coterie, and Texworld USA.
2. Online marketplaces: There are many online marketplaces that connect retailers with wholesalers, such as Alibaba, DHgate, and Global Sources. These platforms allow you to search for and purchase products directly from suppliers around the world.
3. Wholesale directories: There are also online directories that list wholesale suppliers by industry, such as WholesaleCentral and TopTenWholesale. These directories can help you find suppliers in your niche and compare prices and products.