Bluetooth Fob recommendation to work with official OH BT binding

Platform information:
    Hardware: RPi 4 8 GB and 32 GB micro SD + zwave: Aeotec Z-Stick Gen5 (ZW090) - UZB
    OS: Raspian which comes with openhabian 1.6 beta
    Java Runtime Environment: Zulu 8 (standard openhabian)
    openHAB version: 2.5.8-1 (standard openhabian)

I have read a lot about the bluetooth binding and the general difficulties with mobile phone detection (specifically iPhones). That’s why I used the 3rd party bluetooth from @vkolotov for my FlowerCare (not running stable as well, but that’s FlowerCare related).

Long story short:
I would like to use bluetooth key finders / fobs for presence detection with the official BT binding.
Are there any BT fobs recommended to work with this binding reliably?