Go to > Manage search engines and site search .

: Widely used by schools, this app uses Google's Strict SafeSearch plus additional proprietary filters. It categorizes results into apps, games, and news. KidzSearch on Google Play Store

: Emphasizes educational pages and blocks social media results.

: Not a search engine itself, but a parental control app that allows you to manage filters on Google Search and Chrome directly from your device. Google Family Link Website