If you are on a limited budget, your best bet is this O'Neill Tank. It's a wonderful piece, while not very pricey. Another strong contender for your wardrobe is this Moa Moa Tank. While the price of this piece is rather reasonable, it will definitely attract a lot of attention. You might also want to consider this Cropped Top. The price is very reasonable, but the effect on your wardrobe will be pretty fantastic.
If you're looking for something in between pricewise, we've got your back with this Daniel Cremieux Tank. This product is bound to become a total wardrobe staple. It's also worth checking out this Karen Kane Tank. This piece is extremely popular and, just as importantly, not very expensive. And do check out this Tank! It's a very popular item and good value for money.