The 760 Ti is roughly on par with the GTX 670 and GTX 960. I'd suggest looking at something like a B450 motherboard with a Ryzen 3 or Ryzen 5. The advantage of going AM4 is that you'll have upgrade options for another couple of years if you decide to replace the 760 Ti or just want something more powerful in your CPU socket. If you want to go Intel, an i3-8100 or i5-8400 with an H310 motherboard would be your best bet, although I am admittedly not a fan of Intel's price to performance at the lower end right now, especially with more expensive motherboards (generally speaking) and no ability to overclock.