I would get a Asus Z97 Pro Gamer. It's not too expensive and is a good quality board for the money. I have this mobo and an Intel i5-4690k too, but I have the GTX 960 not 970. Anyway it comes with great tools for overclocking. The Asus AI Suite 3 overclocks everything automatically and you can monitor and change fan speeds and temperatures, etc...
For more information please view this link:
https://www.asus.com/uk/Motherboards/Z97PRO_GAMER/