r/Coronado

Our family has been to Coronado a handful of times now and it's one of our favorite places during the summer time. We'd like to find a rental, or maybe a family who leaves for the summer, where we could move into a home from late May or early June through early August while the kids are out of school. I'm sure places like this exist and I don't want to pay the astronomical prices from sites like Air BnB. Are there community places where we could find opportunities like this?