Radiator is cracked how to replace needed

My radiator is cracked in the plastic on the passenger side. At first I thought it was a leak in the reservoir until I had a buddy helped me pressure test it. It's the only vehicle I have so I need to replace the radiator ASAP. But I can't tell which side the outlet generally is to order a new one. The reservoir is on the passenger side the radiator cap is driver side. Any help welcome in replacement parts and advice.