If you're budget-restricted, your best bet is this Free People Tank. It's a wonderful piece, while not very expensive. Another wonderful option is this Hinge Tank. 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 this The Laundry Room Tank. The price is very reasonable, but the effect on your wardrobe will be pretty fantastic.
If you're a bargain shopper, you're in luck with this Paige Tank in stock and waiting for you. You most certainly will love this item. Also consider this Woolrich Tank. It's an attractive option both price and quality-wise. And do check out this Rick Owens DRKSHDW Tank! It's a very popular item and good value for money.