No electronics in the bedroom.
We have an eero mesh router that allows us to pause internet and monitor internet data usage.
We have access to all passwords and social media and can check your computer or phone at any time.
I check their discord once a month to see who they're are talking to.
Also had a talk about grooming with me 14 year old. Told him some of the signs we were seeing with his chats online and to be careful.
I know there's plenty of ways for youth to get around this through apps like snapchat, alt accounts etc, but at least our kids know they're being monitored (because we love them).