Here are the monsters you can discard with Cards of Consonance to draw 2 cards. The White Stone of Legend is a good target because when he is sent to the graveyard you get to search out Blue-Eyes White Dragon, making this combo a +1 in card advantage.
All, exept for the Synchro monsters, Dragon-type Dragunity monsters are Tuners with weak stats. Most of them you can use as cost for Cards of Consonance. Additionally they want to be in the graveyard to be equipped by the Winged-Beast Dragunity monsters on your field.