If you're a frugal shopper, your best bet is this Oxford Shirt. It's a popular item, while not very expensive. In this price range, you can also consider this Alara Classic Shirt. It's also a popular item and won't break the bank. You might also want to consider this Nordstrom Dress Shirt. The price is very reasonable, but the effect on your wardrobe will be pretty fantastic.
If you're not the one to skimp on clothes, then you absolutely must check out this Thom Browne Classic Shirt. This item seems pricey, but it's worth it. While you're at it, also have a look at this Kiton Classic Shirt. Yes, this item is expensive, but it does not mean it's not worth it. And one more item you might be interested in is this Hamilton Dress Shirt. 'Cause you deserve nothing but all the finer things!