If you're after a thrifty option, your best bet is these Park Lane Chukka Boots. It's a terrific piece, while not very costly. Another strong contender for your wardrobe is these Desert Boots. While the price of this piece is rather reasonable, it will definitely attract a lot of attention. You may also want to look at these Asos Desert Boots. This item is not expensive either, but it will make a difference in your wardrobe.
If you're looking for a happy medium, we've got your back with these Clarks Chukka Boots. This item is likely to become a total wardrobe staple. It's also worth looking at these J.Crew Desert Boots. This piece is ultra popular and, just as importantly, not too pricey.