Join a club. Talk to other club members. The club will have club recognized instructors. Some will be fine if everything goes ok. Some will panic if your engine quits and crash your plane. If possible, try to talk to other new flyers. They will probably be your best source for finding a good instructor. The new flyers will be glad to tell you about the bad ones, or ones that crash if a wind comes up! Try to get out on weekends just to watch. If you see an instructor yelling at his students, avoid him like the plague! There is no excuse for this and you don't need the frustration. Hope this helps, Fast!