Originally most were from the Greek-Roman pantheons, e.g., Vulcan, Mars, Aphrodite. Of course this does not keep you from using them. Ardneh is represented in art with a face inhumanly broad and huge, some suggestion of mechanism in the form. Over tens of thousands of years his special powers tend to run down, leaving him again little more than a large dog. In his prime he stands six meters tall walking on his hind legs, has usefully hand-like forepaws and glowing fur, a face neither quite human or quite bestial, and can fight the most powerful demons and gods on something like even terms.
Various factions have flags, uniforms, etc. in distinctive color schemes.
New ones can be made up freely. Religious or quasi-religious organizations, found almost everywhere. Three are prominent, others could be invented. The only widespread religion of real benevolence. May be locally corrupt.