I like what @goingnutsmom suggests. The Ivies are all very different, you’ll probably find one or two that you would be OK with. Pick those out and advocate for them with your parents. Whenever they start talking “Ivies” you rave about your specific Ivy. See if you can get them to understand why that Ivy is right for you. Then you can show them the other schools you like and explain that the reason you like them is that their X program is comparable to (or better than) your favorite Ivy’s.