Start a new thread naming the schools in the title and ask mumsnetters for opinions. The membership site is huge, you'll likely find people who know the schools here. (Bump the thread a few times if you don't find them straight away).
Also, join the local Facebook group for the area and ask for opinions.
However, a warning... take more heed of the opinions of people with DC actually at the school, rather than general local opinion, else you'll be getting the opinion of people about the school from years back and it may not apply any more. Also, explore why they think it's good or bad.
In my town, for example, people will tell you the school in the centre of town is terrible, and the one on the edge of town is brilliant.
But if you ask more questions you'll find that the people who hate the school in the centre of town tend to say things like "the are too many children who don't speak English there" and you'll discover that a lot of the objections boil down to racism, basically.
And if you ask about their knowledge of the "brilliant" school, they're talking about when the old head was there.
And if you then look at the Ofsted reports, you'll find the "terrible" one got outstanding at the last report, and the "brilliant" one got inadequate, a year after the new head took over.
It hasn't changed the reputations of the schools locally though most people are unaware of this unless they have DC there currently.