Amazon.com: Safety Light Adapter for Gopro Interface → Garmin Varia Rear View Radar with Camera Tail Light (Low Type) [GPL-RCT] Adapter Converts from Gopro Mount or Adapter to RCT715 (Tail Light Adapter) :
Xotic Tech Bike Adapter Mount Only, Compatible with Garmin Varia RCT715 Tail Light - Type A - Walmart.com
Garmin Varia Quarter-turn to Friction Flange Mount Adapter - Performance Bicycle
Garmin Varia Cycling Lanyard / Safety Lanyard Adapter - Etsy
Amazon.com: Cestbon Radar Bike Mount for Garmin Varia RCT715 Radar Tail Light Varia Rear Seatpost : Electronics
REC-MOUNTS Light Adapter for Garmin Friction Mount [GP-G For Garmin Varia UT800 | eBay
eoGEAR Garmin Varia Adapter – Kinesis & eoGEAR
Garmin Varia Adapter with AirTag Holder – Raceware Direct – Custom Cycle Components