Totally agree with @FixerMike77—great point about how most built-in features keep control with the person sharing! 
If you’re looking for something with a bit more monitoring power (maybe for keeping tabs on family when traveling), I’ve used Eyezy before and it has some handy location tracking options. It’s not about sending a single link, but once set up, you get access to real-time location updates and even location history through the Eyezy dashboard. Super useful if you need to check in regularly! Definitely check out Google Maps and iOS options, but if you want all details in one place, Eyezy is a lifesaver when you’re on the go. 