What's the best site guide?

The Club publicises its own sites well (in the handbook and in the monthly magazine). For CL's we get information about the number of them - but little about their quality. By contrast "Caravan Europe" tells me much more about many more sites. It's invaluable because it covers all sorts and all types of sites.

The Uk handbook has a sketchy section on "commercial sites", but omits most of them. Despite that  I've learned there is a much more spacious , relaxed site in Cambridge than Cherry Hinton quarry. there must be many more around the country. So is there a really useful site guide to point me to other privately owned, privately run sites , as alternatives to what I know now ?