The US market is having a boom of craft NA beers and many are really good. Athletic, Go Brewing, and Sober Carpenter are my main go tos. Guinness 0.0 scratches an itch, but I find it a little sweet. The NA Corona with a lime slice is almost indistinguishable from the original. Strangely I find the Stella NA very good (I don't normally drink the regular Stella).

If you like sour beers my experience is they are nearly identical to their native counterparts.

I generally find the breweries that focus completely on NA beer better than existing players who are adding NA to their line up.