If you pick a ZigBee device and don't try to power a refrigerator or a washing machine with it, it probably doesn't matter much. Just get some reliable brand, Sonoff, IKEA, something, for wall powered stuff. Battery sensors are fine OEM from AliExpress. I'd advice against anything WiFi that requires a cloud connection, as most of them do, but that is my personal preference.

I use 2 kinds in my house.

Aqara Smart Plugs. Zigbee based, runs from the ZHA integration, has control and monitoring built in. Only does up to 10A. Well known brand. Nous A1Z Smart Plugs. Same as the Aqara, but smaller, handles up to 16A but the brand is not as known as Aqara.

None of them exists in black as far as I know. I go for the Nous ones going forward, as they are smaller and can handle more power hungry devices.

I'm using BlitzWolf ones and they're pretty reliable so far. Been using them for almost a year, so no long term results yet. Measure Power and turn on/off.

I've had bad experience (malfunctions after a year or two) with old Ikea Tradfri ones and some Sonoff plug.

Sonoff s31 flashed with tasmota if you want WiFi or s31 lite for zigbee. Both have been utterly reliable for me. No cloud nonsense either.

Nous A1T.

Simple, with measuring (after manual calibration) of all important parameters, Tasmota, well build where it matters.

I would recommend Shelly plugs, they have been rock solid

I have liked the Sonoffs with Tasmota for many years. But recently, they use different chips that make this impossible.

So I ordered my last ones from athom.com, because they sell them preinstalled with Tasmota (or other firmware).

+1 Tasmota wifi or shelly