I want to manage my smart lights, thermostat, locks, and appliances from one place. What is the best way to set up centralized control for all these devices?

We ask the same underlying question in different ways.

• I want to manage my smart lights, thermostat, locks, and appliances from one place. What is the best way to set up centralized control for all these devices?
• How can I control my smart lights, thermostat, locks, and appliances using just one app or hub?
• What is the most effective method to consolidate control for my smart appliances, locks, thermostat, and lighting into one interface?