Some parental controls can be found built into smartphones, routers and other devices.  If those controls are not sufficient then there are many 3rd party options available, but know that some require a paid subscription.  Click below to find out more about different options.

Bark
OurPact
FamilyTime
MMGuardian
Kapersky Safe Kids
Norton Family
Qustodio
Net Nanny
WebWatcher

Disclaimer: The above companies are not affiliated with Aspis Consulting Inc.