Selling my 2016 Prius C

I’m looking to sell my 2016 Prius C because I will not need it for the following four years in college. What is the best way to go about this? Carvana offered me $7,000 but I think I can do better. There are only 45k miles on the car and I have had no serious problems. Time is not a problem.

How should I sell this car for the most money possible?