Xiaomi BLE Thermometers via BLE MQTT Gateway as individual devices?

I want my 5 Xiaomi BLE thermometers to show up in HA as seperate devices with attached sensor entities.

Using the Xiaomi integration with an attached bluetooth dongle works as intended.
But as some devices are spread outside the BLE range i used a ESP board running tasmota as BLE gateway. After some configs i can (manually) get the MQTT topic / entities of each sensor of each device.
I could work with this but would like some more hirarchy in my setup :wink:

How do i get the thermometers to show up as individual devices (under MQTT or BLE or anything) with attached sensor entities?