LoRa repeater module vs LoRa end node

Hey Guys,
I am a beginner with LoRa modules. I want to use a repeater to extend the range of a LoRa network. The repeater is required to recieve data from 5-6 LoRa end devices and its throughput is very low, around 6 bytes payload per end device. Should I use a dedicated repeater module or a normal LoRa end module as repeaters in this case?
Thanks in advance.

I am interested, is there a dedicated LoRaWAN compliant repeater ?