Need to close a credit card but don't know which one to close without hurting my credit score?

I have 4 credit cards that I have just recently paid off. My question is which ones should I close? 2 of the accounts are Paypal? I have 692 credit score and I am about to apply for home mortgage loan. I have owned each account between 5 and 3 years. They all have an interest rate in the high teens. Please advise?

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