S.L.
The one I would recommend is not a charter school but a private school. Its ALA,( Az Lutheran Academy) located at 27 and Southern. Its a Lutheran school but you don't have to be Lutheran or really even religious to go there, but that does help because they do pray and have chapel. The whole school has 160 kids. They have athletics, drama and several of the programs other high schools have. They will work with you in whatever ways they can with tuition.
You can drop in anytime and they will give you a tour.