Led Sled and Paughco make good ones.

Lots run the DNA/Attitude/etc springers made in China with varying levels of success. There has been some failures but that can go for any fork when given a big enough hit. The problem with the cheap springers is the terrible ride and squeaks/rattles they give.

As above, there are 2 types of HD springer, look for the straight leg. The Offset one can work well but depends on the rake of the frame in the neck. Can give a real odd look once assembled plus some interesting handling.

My recommendation is to spend a bit more, look at some of the US manufacturers who do custom lengths depending on your frame and look. They can do wide/narrow/brakes you name it.