Recommend budget work phone?

Hey folks. I was using an HTC One m7 for a work phone, but the version of Android it runs has aged out of compliance with our company network requirements.

I would like to buy another phone that supports Android 7. I am looking for the best value (cheaper, older model) and suggestions on where to buy. Used would be fine.

Since the phone is strictly for work purposes, I don't require a lot of frills like a great camera or the best display. Just want something that can run the latest version of Android so I can access my corporate mail and intranet.

My carrier is Verizon.

Thanks in advance!