If you're looking for an affordable item, your best bet is these H&M Chinos. It's a wonderful piece, while not very costly. Another nice option is these River Island Casual Trousers. While the price is not too high, be sure that this product will become a wonderful addition to your wardrobe. You might also want to consider these Eleven Paris Chino Pants. The price is very reasonable, but the effect on your wardrobe will be pretty fantastic.
If you're looking for an item in the middle of the price range, you're in luck with these J.Crew Chinos in stock and waiting for you. You are guaranteed to fall in love with this product. It's also worth looking at these Boden Chinos. This piece is ultra popular and, just as importantly, not very expensive. Alternatively, opting for these Anthropologie Casual Trousers is a nice choice as well!