Where would I look to find one similar to it?

perhaps here? http://www.restorationhardware.com/
look under hardware tab

Lori, did you contact your retailer and ask them about replacement hardware? Or, search for a United Furniture website online?

Good Luck!

Just a thought?
If you have all the pieces of the drawer pull, it "may" also be repairable. Especially if you swap out this handle to a smaller or less used drawer.

J/B Weld available at hardware/home stores has fixed many metal things for me.