I like any 50 wt. thread for quilting and also use metallics or Sliver which is considered a 40 wt. Glide is great = no lint. But you can used thinner like 60 - 100 wt (silk) if you want, it depends on the type of quilting you are doing. Grab a quilt sandwich in a solid color and experiment. Use thread colors that contrast with your fabric, so you can see the stitches.