If you can’t spend much, this Royal Robbins Henley Shirt will fit the bill. It's a foolproof choice, while not very costly. Another smart option is this Henley Shirt. While the price is rather reasonable, be sure that this product will become an excellent addition to your wardrobe. You might also want to consider this Columbia Henley Shirt. The price is very reasonable, but the effect on your wardrobe will be pretty fantastic.
If you're looking for something in between pricewise, why not look at this Aventura Clothing Henley Shirt. While the price is very reasonable, this product is an easy wardrobe update.