Usually I would say visit each school to get a feel, but that is harder to do at the moment as most tours are happening outside school hours when the children are not there. I know that our new head at Wandsworth Prep, Jo Fife, would be happy to have a chat with you on a Zoom call. She is extremely dynamic and passionate about getting the best education for every child in the school. Feel free to email me if you have any questions email@example.com
. All of the schools on your list are great schools, so you have a plethora of good options. Good luck with your search.