If you're on a thrifty mission, your best bet is this Roxy Romper. It's a popular piece, while not very costly. Another strong contender for your wardrobe is this Line & Dot Playsuit. While the price of this item is not very high, it will definitely attract a lot of attention. Or you can choose this Adelyn Rae Romper - be sure you'll be making a stylish addition to your wardrobe.
If you're willing to splurge, why not take a look at this MLV Playsuit - a great luxury choice. While you're at it, also have a look at this St. John Jumpsuit. Yes, this item is expensive, but it does not mean it's not worth it. You might also be interested in this Jumpsuit. You won't regret the money spent!