Which digital antenna works best?

There's no such thing as a "digital antenna".  That's all marketing hype; don't get sucked in.  Some HDTV channels have moved to the UHF spectrum while others remain on the VHF spectrum, so the antenna you get does make a difference, but it varies significantly by where you are.  I need an antenna that can receive both UHF and VHF because about half the channels I get are on each one and the direction I point the antenna makes a huge difference.

You can use something like https://www.tvfool.com to see what channels should be available to you and what kind of antenna you may need.