Can't help with the area I'm afraid but we were in a similar position last year and our son is now at an enhanced resource school. It's a typical mainstream primary with a small unit attached so he is mostly in with his class but has some withdrawal for extra support. It's been absolutely fab and I would recommend having a look if you have them in your area. Good luck with the search!
Thanks for your message. We’re based in Oxshott so looking round that area but willing to travel if we don’t find the right school. Do you mind me asking what school he’s at? Is always good to have recommendations from parents in similar situations! Xx