Weapons-grade home WiFi suggestions

[Zonergem]

Soon to complete on a new house. It's a five storey terrace with a posh shed at the end of the garden that is going to be used as a home office/gym room.

Having suffered with poor broadband speeds and poor wifi signal strength in our rented properties (including rural broadband that is about as useful as a length of wet string) I'm determined to get the fastest fibre available and distribute it effectively around the house. I've had a plug-in range extender before and it didn't prove reliable.

What are my best options please? Hard-wire several routers together?

[Zonergem]

OP here. Thanks to all for responses and insight.

Going to go with Google WiFi - maybe five or even six, daisy-chained with as much copper cabling as we can feasibly install.

Annoyingly although the house is in a city with some ultra fast FTTP areas offering 1Gb broadband it doesn't quite touch our area (too central it seems, maybe making it more expensive to dig up?) and we'll be on FTTC for a while yet. 80Mbps or so.

Looking at HomeHub/Nest/Google WiFi as a play-nicely-together package (and the Mrs works for Big G)...