| Gisher |
But if you don't believe that Bloodrager Bloodlines count as Sorcerer Bloodlines (Advanced Class Origins says that it is up to the GM), then you could select the Gold Draconic Bloodrager Bloodline and use the Eldritch Heritage feats to gain Copper Dragon Sorcerer Bloodline powers.
You could do something similar by taking levels in Dragon Disciple, but the two classes wouldn't advance each others bloodline powers.