Did you look at the portal units I posted? A bit cheaper than the Amplifi, and it will give you ethernet ports at the client side also.
I looked at the Amplifi and the Orbi but I liked the Portal better because of the ethernet ports, and it is built more to the specs of commercial grade, rather than consumer grade.
https://www.engadget.com/2016/05/10/portal-router-aims-to-deliver-us-from-congested-wifi/
https://portalwifi.com/technology