Hello! The right place for your boy and the right financial solution are out there. I just found this thread and saw that my S21’s path was referenced in it.
Here’s a link to the story: S21--not an easy path, happy to get some input at this stage
Net is that while not the same background, seems like we were looking for similar things. You’ll find in it reviews of school visits, admission results including merit, and impressions of level of support at various schools. A number of the schools in your thread already are mentioned here.
Good luck and happy to answer any questions if you have them!