I stitched a compilation of fill stitches for an article. These are the embroidery stitches used (in the last picture you can see which is which):

• satin stitch
  
• Otomi
• roumanian couching
• couching
• knots like french or colonial knot
• seed stitch
• long & short stitch
• weave stitch
• chain stitch
• blanket stitch
  

Click here to see the full article on fill stitches.