Depending on what you want to spend Meguiars makes several different soaps, used them both. Currently using the Zaino product, I know most all of the other wax/polish companies make a soap product. I mentioned this before - no matter what you use make sure your wash bucket is clean, rinse and wipe it out after you use it. The grit that is left behind in the bucket is an excellent contributor to swirl marks.

Pat