Affordable 6 month lease/rental?

I need a car for the next 6 months. Any recommendations? My budget is $450-550 per month. I've looked at Turo and different rental companies, but the pricing is insane for a longer term rental, upwards of $1500 per month.

Anyone know of a dealership that allows 6 month leases? So far 12 months is the shortest I've found.