Hi, John. Long time no see.
As the CDMA network is being retired by the end of 2019, it is more important to get a phone capable of HD Voice/VoLTE with the correct LTE frequencies then to get a phone with CDMA radios. Verizon Wireless actually won't activate a phone that handles voice calls only through the CDMA network.
If you are looking at unlocked models, you can check the model number against the certified BYOD list linked below. I would have to go digging a little deeper to verify the Verizon Wireless model number.
I'm most definitely NOT a VZW employee. If a post answered your question, please mark it as the answer.