Hi,
there isn't much to chose from. There is the Winwood Muddy Cross. Rich and I have have Carpe Diems with Surly forks. The spec is 43mm and the Surly has 44mm rake and the Muddy Cross has 45mm. I don't know enough to say how significant that is. The Cross is a couple hundred, the Surly is $100, less if you shop around. The Cross is, I believe about 10 ounces lighter.