Recent repeater/extender options for LoRaWAN

Dear TTN-Fellows,

I’d like to extend the LoRa-coverage in a forest, where there’s only poor internet coverage.
I have reviewed some of the tutorials before 2019 to build repeaters such as these ones:

For my use case I would like to repeat signals from a Class C device (that most of the time is sleeping) over to a Class B device that is always listening and transmits to a gateway.

What are my best options to realize that or is it simply not a good idea to use repeaters?

Thank you!

Apologies guys: i’d like to extend my thread with following question: is it possible to use a standard RPI LoRa gateway and the packet forwarder as the gateway?