gypsyflame has a number of D/s bottom!Draco fics that are all incredibly hot.
Also, if you don't mind a self-pimp, you might enjoy my fic Slytherin Green (http://archiveofourown.org/works/400922), which is a consentual 24/7 D/s Harry/Draco, or Unexpected (http://archiveofourown.org/works/508286), which - although not a 24/7 fic - is an exploration of the need for the power dynamic of a D/s relationship (and the beginning stages of one).
no subject
Also, if you don't mind a self-pimp, you might enjoy my fic Slytherin Green (http://archiveofourown.org/works/400922), which is a consentual 24/7 D/s Harry/Draco, or Unexpected (http://archiveofourown.org/works/508286), which - although not a 24/7 fic - is an exploration of the need for the power dynamic of a D/s relationship (and the beginning stages of one).