If you're not planning on spending much, your best bet is this AG Adriano Goldschmied Tank. It's a terrific item, while not very expensive. You might also want to look at this Charli Tank. It's a product you're bound to love which also won't break the bank. Or you can choose this Krisa Tank - be sure you'll be making a stylish addition to your wardrobe.
If you're not a thrifty type, then what you're looking for is this 360 Sweater Tank. It's more expensive but worth your money. Why not take a look at this Tank too? Expensive, but worth every penny. And how about the luxurious Generation Love Tank? Yolo, right?