There are a number of Arduino shields and accessory modules for LoRaWAN use. Below is a list that is in no way comprehensive. If you know of other compatible shields and modules, it would be great if you opened a Github Issue with your recommendation. Please include a short label/title and a link to the module.
|Cytron LoRa-RFM Shield||Arduino Uno (Rev 3) and compatible boards|
|LoRa Shield for Arduino - RFM96 915Mhz||Arduino Uno (Rev 3) and compatible boards|
|Lora RFM95 Shield-915MHZ-V1.1||Arduino Uno (Rev 3) and compatible boards; Eagle files|
|Grove - Wio-E5 (STM32WLE5JC) (Wiki) (Digi-Key)||Arduino Mega or similar; requires more than one
|Adafruit RFM95W LoRa Radio Transceiver Breakout (Digi-Key)||Requires 3.3v; Comprehensive instructions at Adafruit|
|Lora 915Mhz Module SX1276 Wireless Transceiver Module||Instructions; requires 3.3v, module is available in various form factors|