Galaxy S9/S9+ TPU Case, one clear and one black, 50% off $5.98 comes to $2.99 after clipping the COUPON on the page.
I just got this, it fit well, but DO NOT hope that it will give you any kind of protection, the clear one is a little thicker than the black one, the black one is plastic bottle kind of thin.
If you do take care of your phone and want something to protect from scratch but not drop, I would recommend this case. It does LOOK nice on my new phone.
S9 https://www.amazon.com/gp/product/B07B1VVKYG/
S9+ https://www.amazon.com/gp/product/B07B1XQ5ZQ/