Recommended DOCSIS 3.1 Modem?

While I know Cox has a list of certified DOCSIS 3.1 modems, is there one of these modems that stands out above the others?  Or, perhaps, a 3.1 modem to steer clear of?

I'm considering upgrading my connection speed, and my Arris SB6183 modem won't handle anything above around 350 Gbps (if memory serves), so I know that, prior to upgrading my connection speed, I need to replace this Arris router with a reliable DOCSIS 3.1 modem.

Any recommendations?