Good morning Tana,
Reading your post made me realise how tough it is to be relocating. We moved to Wandsworth ten years ago from abroad and had no one around.
We have been amazed by local state schools and how privileged the area was compared to some other parts of the country.
Both my children are attending Bolingbroke Academy in Y8 and Y11 and we have been very happy about the school. Of course, they came from one of the feeders primary schools and so the transition was made easy as they knew some of their classmates.
To my opinion, this is a place with a strong vision for its pupils and the head is a great manager. Each year group have a head of group which you can easily reach as well as a “Civitas teacher” for smaller groups who will be able to communicate / help you with your questions.
The school has a unique drama and music department, if your son is interested.
It is very hard to say whether this school would suit every one, specially since the sets make the experience different. My eldest in Y11 is aware of the implications of being in the bottom sets in terms of disruptive children. So she always made it work.
I have found the communication with the teachers very good, and the weekly phone call during the lockdown is a tribute to the school’s success.
You might be interested into Chestnut Grove Secondary which has just finished their refurbishment but I don’t know about it at all.
All the best for your search