I think it's really difficult to choose resources at that age. My experience is that coursebooks are usually lacking in some area and do not usually succeed in engaging the students.
I think coursebooks need to be supplemented and added to. So, instead of giving the name of a resource, I'm directing you to various links.
You could look at the following link on using readers in the classroom:
You could also look at other questions I have replied to on teaching children and teens.
All the best,