This looks like a great combo purchase. The best transparent case and the best screen protector as rated on Amazon paired together seem to be the best combo buy you can make to protect your new iphone 6s.
Products featured :
iPhone 6s Case, Spigen® [Ultra Hybrid TECH] AIR CUSHION [Crystal Orange] Slim Highly Durable + Flexible TPU Bumper Protection for iPhone 6s (2015) - Crystal Orange (SGP11602)
iPhone 6s Screen Protector, JETech® 2-Pack [3D Touch Compatible] Premium Tempered Glass Screen Protector Film for Apple iPhone 6 and iPhone 6s Newest Model 4.7
Learn how I applied this screen protector in this youtube video.