It depends. Companies such as MicroPerfumes sell any designer fragrance samples you could want, but they lack niche fragrance samples. You can also find fragrance samples at retail stores such as Nordstrom, Sephora, and Ulta, though these are limited to the fragrances they carry. If you want a sample of a niche fragrance, I would check with the brand or supplier. These smaller companies are different, and some may or may not carry samples.