Which car for 4-6 months?

After the theft of my Audi, I need a replacement vehicle for 4-6 months. I would like to spend about 4,000-5,000,-. It would be important that I can sell the car well again, so it should be a popular and sought-after model. I initially thought of a VW Polo, but would also be open to any other model. Which car in this price range is quickly sold again?