Can I get a bus tour with an English speaking gude from Chengdu to Nine Villages Valley.?

Of course, you can join a local English tour to travel to Jiuzhaigou, but it is suggested to go on your own. Traveling with a tour is hard for you to travel every corner you want to go.
If you really want to join a tour, it is suggested to travel with TravelChinaGuide, which I think it is pretty well. You can contact them to arrange a private tour for your own and their email is travelchinaguide.com|tours.