Motorola Z4 from bestbuy is $120 outright if you add a line to an existing verizon account or start a new account. You can port out the line to cancel as soon as you want. No bill credits or any nonsense like that. There is a $40 activation fee plus the plan charges for however long you have the line open for. If you port out quickly enough the activation fee might not post but even if it does the total should be under $200. Retails at $500 so you get a significant discount.
The Unlocked samsung S9 at visible wireless. Net cost is $268-$288.
Costs $408 plus $80 for 2 month's service (less $20 if you use a referral code) and you get a $200 prepaid card back after 45 days. New and unlocked.