I don't think there is such a thing as an exact match. Any two people are going to have their differences. The important thing is to find someone with whom you don't have major differences that put you into conflict.

If one of you is a spender and one is a saver you'll have lots of fights about money. On the other hand, if you are like my wife and I and have considerable differences in food preferences, it's not a big deal. We generally do not eat the same food but what's to argue about? In a way it helps as there's just about nothing we both regard as the choice bits.