If you're looking for a thrifty option, we recommend opting for this Alice McCall Romper. It's a great piece for a reasonable price. Another strong contender for your wardrobe is this L'Agence Jumpsuit. While the price of this piece is competitive, it will surely attract a lot of attention. You might also want to consider these Shorts. The price is very reasonable, but the effect on your wardrobe will be pretty fantastic.
If you're looking for a happy medium, check out this Alice McCall Playsuit. While the price is very reasonable, this piece is an easy wardrobe update. It's also worth looking at this LnA Playsuit. This piece is extremely popular and, just as importantly, not very expensive. Alternatively, opting for this Roksanda Jumpsuit is a smart choice as well!
If you're not the one to skimp on clothes, then what you're looking for is this Rachel Comey Romper. It's more expensive but worth your money. While you're at it, also have a look at this Romper. Yes, this item is expensive, but it does not mean it's not worth it. You might also be interested in this Zimmermann Playsuit. You won't regret the money spent!