When we cut the cord ten years ago, I initially used an amplified Radio Shack indoor antenna. It was so-so. Then I found a firm here in NC who made antennas for military applications had added a subsidiary to manufacture TV antennas:
Mohu productsI switched to a Mohu Leaf just laying atop a bookcase and the difference was very noticeable. A couple of years later they came out with the Mohu Sky which I mounted in the attic. It was even better. I've been very pleased with my Mohu products. And they are actually designed and manufactured in the USA.