Help choosing the right WiFi Mesh for my setup

What is the size of your home? Sq Ft?

I would first start here: 

https://www.netgear.com/orbi/default.aspx
https://www.netgear.com/orbi/wifi-systems.aspx

Base on the size and building materials will kind of let you know what you may need. 

This tells you the specs of each model for Orbi.

https://kb.netgear.com/000038220/What-are-the-hardware-specifications-of-the-available-Orbi-WiFi-Systems

I recommend getting the router out of the basement and up to the 1st or main floor for best wifi operation. Basements are not good places for wifi sources. 

The CBK40 is a cablemodem gateway with wifi so be aware of this as this is a all in one combination for your modem and wifi router. Some of these work well for simplistic users. Other configurations, you may want a separate modem and router such as one of the RBK series.