Moto E 4G (2nd gen) with the Snapdragon 410. Try finding a Verizon prepaid one at Best Buy for $50.
If it is on Lollipop 5.1, there is a trick using the Network app, turning on and off the radio, and finding the 4G on the mobile network in the settings app. It won't appear as a recommendation at first. You have to keep doing it over and over of turning off the signal until the 4G option shows up. But it will be unlocked. Find the instructions on XDA forums.
If it is on Lollipop 5.1, there is a trick using the Network app, turning on and off the radio, and finding the 4G on the mobile network in the settings app. It won't appear as a recommendation at first. You have to keep doing it over and over of turning off the signal until the 4G option shows up. But it will be unlocked. Find the instructions on XDA forums.