homeassistant

I have a bunch of different zigbee models, but my overall favorites are the Sengled Zigbee plugs. They have power monitoring, which can be really useful for automations.

For example, my computer monitor makes an annoying high-pitched squeal when in standby mode, so I have it and my PC on separate Sengled smart plugs and if the PC plug is drawing low enough wattage for 10 seconds that I can be sure it's off or asleep, my automation turns off the monitor smart plug, and when the PC plug wattage jumps back above the threshold, the monitor plug gives power to my monitor again.

Obviously that specific use is a bit niche, but the ability to know when not-smart devices are using more or less power and run automations accordingly can be really useful.

There are other brands besides Sengled that have power monitoring, but I've found theirs to be pretty reliable, just make sure you get the zigbee plugs, because they also make wifi plugs that look basically identical to the zigbee model.