With LoJack dead in the US, what is a classic car GPS tracking alternative?

I use an Apple Airtag. I removed the built-in "speaker", and hid it in a magnetic case in the car. Works great for me, and no ridiculous subscription fee. Will it inform me if the car is stolen? No, that's the job of an alarm system. But the app let's me know where the car ends up when it's moved to a new location.