Can I get some help getting root access on my Galaxy S4 (SM-S975L)?

[AC Question]

I need help getting root access on my Galaxy S4 (SM-S975L)

I have tried towel root on my other Galaxy S4 and it worked. But I havea new s4 but the towel root will not work it says that my phone isn't currently supported. Please help kind of new to this. I know slot about computers but this phone thing is new to me. Thanks