If you're looking for a happy medium, look at this Theory Jacket. While the price is very reasonable, this item is an easy wardrobe update. It's also worth looking at this Alice + Olivia Blazer. This item is ultra popular and, just as importantly, not very expensive. And do check out this Frame Jacket! It's a very popular item and good value for money.
If you can afford to splurge, then you won't be disappointed if you check out this Pallas Blazer. It's an expensive but smart option. While you're at it, also have a look at this The Row Blazer. Yes, this item is expensive, but it does not mean it's not worth it. You can also check out this Saint Laurent Blazer. You won't regret the money spent!