Adorama has a great deal on a popular Flashpoint zoom on-camera flash. They have the Canon TTL on-camera flashes (featuring an internal lithium-ion battery) on sale, discounted 28% from the regular price of $179. Sony, Olympus, Nikon and Fuji compatible flashes are also available.
Flashpoint has become a very popular Adorama-exclusive rebrand of Godox flashes — highly touted for their value and affordability.