I have a bunch of these in my house: Kasa Smart Plug Mini 15A: https://a.co/d/iLhmDDu

Their app is really simple. Each switch has independent schedule and timer options. You connect via WiFi.

I also control them with HomeAssistant if I want more coordinated control, and you can do that at the same time as using the native app to manage them, so free to use whatever works best for you.