What are the options for an Apple HomeKit home hub?

If you want to set up an Apple HomeKit home hub, you have three options — but one has a big drawback. Here

HomeKit Hub - Everything you need to know - HomeKit Authority

Demon Seed: Google Home automations get more trigger options to

Getting Non-HomeKit Devices Working in HomeKit

How to use Apple TV to control your smart-home gear - CNET

Smart Plug Works with Alexa, Apple HomeKit Siri, Google Home

Don't have an Apple TV? The iPad can also be a Home Hub for

Use Apple HomeKit to automate and secure your home - The Mac

Apple's iOS 10 makes iPad a 'Home Hub,' expands HomeKit appliance

I Made My Non-HomeKit Devices Work with the Apple Home App