Spigen Thin Fit
Another very popular case for any phone is the Spigen Thin-Fit. As the name implies this is a case from Spigen that is extremely thin and form-fitting.
Basically, this will keep the phone safe while keeping it as thin and lightweight as possible. The only downside some may have is the "snap-on" design. As a result, the top isn't 100% covered by the case. That said, the corners or screen are what hit the ground when dropped, so this shouldn't be a concern.
It's made with a durable polycarbonate plastic and a soft matte finish on the outside. It's one of the best LG G6 cases around, and it's only $12.99