Spiral Scroll Saw Blades by Niqua of Germany and Pegas of Switzerland are fantastic quality and highly popular
Pegas makes one type of spiral scrollsaw blade - starting at size 2/0. Niqua makes 3 types of spiral blades - order a sample pack, or shop by the dozen Check the links below to shop by type or spiral blades sample packs.
Spiral Scroll Saw blades are used by thousands of scrollers. They allow you to move the wood around the blade, rather than spinning the wood around a flat blade. You will have a bit more clean up to do on the bottom of the blade than you would with a reverse tooth blade like Modified Geometry or Ultra Reverse. Have a look at this example video, and within each category, you'll find dozens of reviews.