The government has produced a useful webpage listing sources of advice and support for keeping their children safe. The guide includes information about:

• Protect children from domestic abuse
• Teenage relationship abuse
• Child sexual abuse and exploitation
• Sexual assault referral centres
• Crime, Criminal Exploitation and County Lines, violence and gangs
• Protect children from radicalisation
• Prevent
• Online child safety
• Mental health

You can find the information here:
https://www.gov.uk/government/publications/coronavirus-covid-19-keeping-children-safe-from-abuse-and-harm/advice-to-parents-and-carers-on-keeping-children-safe-from-abuse-and-harm