Something fully moderated like https://newmoongirls.com/ https://newmoongirls.com/ is the safest way to go, but it's only applicable to certain demographics and

Something fully moderated like https://newmoongirls.com/ https://newmoongirls.com/ is the safest way to go, but it's only applicable to certain demographics and probably isn't what the kids think of as a "social network".