Building a rural network for Internet access

Hi, I'm a total beginner here and we are planning to build a wireless network to distribute Internet to some places where the phone and fiber lines can't reach.

We would be getting a 1Gbps fiber connection in town and the houses (maybe 15) that will be getting the connection be about 2 to 5 km away from the main Internet connection. This will all be wireless.

The ISP will provide a modem/router with this connection, what other equipment are needed and please suggest good brands for this. Hoping to have a simple and cost efficient setup for this.

Thanks!!!