If you're on a thrifty budget, your best bet is this Free People Blazer. It's a wonderful product, while not very pricey. Another smart option is this Sam Edelman Blazer. While the price is not very high, be sure that this product will become a great addition to your wardrobe. Or you can opt for this DKNY Blazer. This item has all the potential to become a powerful player in your wardrobe.
If you can afford to spend a little more, consider buying this Lucky Brand Jacket. While the price is very reasonable, this piece is an easy wardrobe update. You can also look at this Blazer Vest. It's an attractive option both price and quality-wise.