I have a bunch of Kasa devices. I got them before Tasmota was really on the scene, because they are configurable and controllable without Internet access. The protocol could be better, but it does work. I've heard that TP-Link may have changed the protocol since then (at least on some devices), so YMMV.

https://github.com/softScheck/tplink-smartplug/blob/master/t...

https://python-kasa.readthedocs.io/en/latest/cli.html

As an aside - Tasmota is great, but I'd be very wary of random Chineseum off Amazon for switching mains power.