@AdnanM 

Archer routers have much more flexible and advanced firmware. So in this case it is better to choose Archer

however, I would personally recommend taking the archer ax10, it has better hardware and supports easy mesh over ethernet in case of expanding wifi with a second similar device

My home's walls are made of brick and mortar. I'm looking for a router that can effectively penetrate these walls to minimize dead zones.

  @AdnanM 

in your case it might be worth considering purchasing two Deco S7 modules to connect them into a deco mesh 

or buying two archer ax10 models to connect them into an easy mesh

so that there is a good signal level at 5 GHz everywhere