https://www.amazon.com/ARRIS-SURFboard-Approved-SB8200-Frustration/dp/B07DY16W2Z/ref=sr_1_5?dchild=1&keywords=CABLE+MODEM&qid=1626797013&sr=8-5

OR

https://www.amazon.com/MOTOROLA-MB8611-Ethernet-Approved-Comcast/dp/B0723599RQ/ref=sr_1_3?dchild=1&keywords=CABLE%2BMODEM&qid=1626797100&sr=8-3&th=1

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You will need a router as well. Depending on the size of your house you can go with a single router or if it is larger a mesh system.

https://www.pcmag.com/picks/the-best-wireless-routers

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https://www.amazon.com/TP-Link-AC2600-Smart-WiFi-Router-dp-B07QF74ZXB/dp/B07QF74ZXB/ref=dp_ob_title_ce

Good router

I actually have the AC 2300, but this one appears to be newer and cheaper.

Not sure if you care about open source router firmware, but the 2300 didn't have it, and the 2600 likely doesn't have it either

2300 covers 3000 square foot house and most of my small corner cul-de-sac yard, might want to research if the 2600 has same capability

Good Modem, I have this

https://www.amazon.com/MOTOROLA-Approved-Comcast-Gigablast-MB8600/dp/B0723599RQ/ref=sr_1_6?dchild=1&keywords=motorola+sb&qid=1619749332&s=electronics&sr=1-6

I use this on gigabit internet