First time house buyer in London

Hi, I am looking to buy a house (3 bedroom end terraced, semi-detached, or detached) in London and my budget is £550k.

Looking for suggestions for areas in London that will suit my budget and which are:

• Safe and family-friendly
• Have good transport links to central London (I work in Holborn)
• Offer a mix of amenities like parks, cafes, shops, etc.

Thanks in advance.