Google Trackimo, they have different models. I have an older version, G2 but G3 is better. Purshased mine used for $45 bucks, then $60.00 for yearly services from trackimo.
Pay a one time purshase for the tracker, and yearly service. It’s already paid for itself, had a disconnect two months ago and drone wasn’t were it was suppose to be from the drone app. Trackimo app showed it at it’s correct location though, 1/4 mile away from drone app.
Use it with all my drones, Mavic 2 Pro and several Bebop 2 models.