Antsplust Galaxy S7 Glass 2-Pack
Antsplust tempered glass screen protectors are durable, thin, and affordable. In fact, you can get two of them for only $7.99. They have a design that's similar to TechArmor, so you know they'll fit great.
The edges don't quite cover the entire screen, which is by design so cases still fit and won't pull up the glass.
To make things even better, this company is selling a 2-pack of real glass screen protectors for only $7.99. It's a low price and will keep the screen looking new. They also have some of the best reviews on Amazon.