Got a bit lucky today and came across a MSI 1060 6gb for a $100 locally. Took a good cleaning and some thermal paste but it's running great from what I can tell with my testing so far. : r/sffpc
Amazon.com: MSI GAMING GeForce GTX 1060 6GB GDRR5 192-bit HDCP Support DirectX 12 Single Fan VR Ready OC Graphics Card (GTX 1060 6G OCV1) : Electronics
Best Buy: MSI Trident 3 8RC Gaming Desktop Intel Core i7 16GB Memory NVIDIA GeForce GTX 1060 1TB Hard Drive + 256GB SSD Black TRIDENT38003US