A: "Oh, I can come to the party now, and I'll definitely bring an appetizer." B: "Hey, even better

You could use a vacuum or, even better, a steam cleaner, to get all of this dirt off your rug.

http://https://idioms.thefreedictionary.com/even+better#:~:text=A%20phrase%20used%20when%20talking,than%20that%20which%20preceded%20it.