The Best Xfinity-Compatible Routers (Updated 2022)
Amazon.com: Motorola MG7700 Modem WiFi Router Combo with Power Boost | Approved by Comcast Xfinity, Cox and Spectrum | for Cable Plans Up to 800 Mbps | DOCSIS 3.0 + Gigabit Router : Electronics
How to choose the right cable modem | Tom's Guide
Can't get compatible modems list from https://www.xfinity.com/support/devices/ : r/Comcast_Xfinity
Comcast Xfinity Approved Modems | ModemGuides
5 Top Comcast Xfinity Compatible Modems 2023 | Reviews.org