The best type of jeans to buy are Levi's.
You're best bet is to buy them online. I've attached a link to a good site that breaks down where to buy jeans.
old navy
Hot Topic.
The best website to purchase different kinds and types of various jeans of all name brands is Buy Some Jeans. It offers a wide variety of an array of jeans which one can carefully choose from.
Outlets is the best deal ... that way you know their real
The best place to buy Burberry jeans would have to be at Nordstrom. They're prices aren't super cheap, but are far cheaper compared to normal retail clothing stores such as Bloomingdales or Neiman Marcus.
By far, the best place to buy levi's jeans is online. You will get a wider selection of colors and sizes, and often pay much less then you would in a store.
There are a lot of places that offer discounts for Diesel jeans. One place that you can explore is at www.nextag.com, where there are plenty of Diesel jeans available for sale.
You can buy a rainbow jeans from Hot topic or you can buy white jeans and then do tie dying on them.
There are several places where you can buy jeans and it would depend on what style you were interested in. American Eagle sells nice jeans at affordable prices. Target is another place to find great jeans.
The best place to buy any jeans is online. You'll get the best selection. I attached a useful article about mom jeans.
Undoubtedly you'll easily find your best deal on jeans on the internet. You can check retailer's sites now and again for deals. Always factor in the cost of shipping, too. I've also added a link below to a site that reviews the best places to buy jeans online.