Hi,
I have found quilting designs at Anita Good Design, Embroidery Library, Dakota Collectibles, etc., almost all of them have some, put in a search on the site.
I have done several tablerunners using embroidery as quilting and a couple baby quilts. It's fun and it works super. I usually do some designs in some of the squares and then SID the rest of the quilt.
Bev