boys football options in Fulham area

[R3ady5et6o]

hi there, we're moving to Fulham in December from overseas. My DS 9 and DS 6, are both football mad so hence excited to be moving to London. We're keen to get them signed up to a club as it's a great way to make new friends and settle fast.
Any advice or tips on clubs that cater for 'competitive' Saturday football for these young boys?
thanks v much