There's only a few options that are worth pursuing. I've got plenty of rock solid performance behind that opinion.
The one I like the best personally is HA with a ConBee2. Everything pairs easily and stays. IKEA Trådfri outlets and repeaters work fine with it too. Home Assistant Device Bridge is simple to setup and very effective to bring the devices back into HE.
A variation on the above is to use the Mijia Multimode Gateway 3 with AlexxIT's integration. This gives you all the Mijia and Aqara devices, and you can also use BLE and Bluetooth Mesh devices if you want them.
You can also use Zigbee2MQTT with Node Red, but that's a steeper climb than the first two options, if your goal is to just connect Aqara and Mijia devices to Hubitat Elevation.
