If you're looking for a thrifty option, this Socialite Playsuit will fit the bill. It's a fail-safe choice, while not very expensive. Another strong contender for your wardrobe is this Flora Nikrooz Romper. While the price of this piece is not very high, it will surely attract a lot of attention. You may also want to look at this Roxy Playsuit. This item is not expensive either, but it will make a difference in your wardrobe.
If you're looking for something in between pricewise, why not look at this Cooper & Ella Romper. While the price is very reasonable, this piece is an easy wardrobe update. You might also want to take a look at this Lovers + Friends Romper. It's an attractive option both price and quality-wise. And do check out this Tularosa Romper! It's a very popular item and good value for money.
If you're in a Treat Yo' Self mood, then you absolutely must check out this MLV Playsuit. This piece seems expensive, but it's top quality. While you're at it, also have a look at this Zero Maria Cornejo Jumpsuit. Yes, this item is expensive, but it does not mean it's not worth it. You might also want to look at this St. John Jumpsuit. You won't regret the money spent!