If you'd like to see some sample deities, check out the Gods of Porphyra, a 100% Open Game Content religion resource by Purple Duck Games. We are not able to use the Pathfinder Campaign Setting gods and deities since they are not Open Game Content. Hopefully you'll either use, or gain some ideas from, the gods created by Purple Duck Games!
Presented below are rules for subdomains—more specific focuses for clerical worship and power that allow players greater flexibility in customizing their characters. Every domain has a number of subdomains associated with it. Each subdomain replaces a granted power and a number of spells in the domain’s granted spell list.
A cleric who chooses a subdomain must have access to both the domain and its subdomain from her deity (see Table: Deities of the Pathfinder Campaign Setting). If a cleric selects a subdomain, she cannot select its Associated Domain as her other domain choice (in effect, the subdomain replaces its Associated Domain). Subdomains are treated as equivalent to their Associated Domain for any effect or prerequisite based on domains. If a subdomain has two Associated Domains, the cleric can only select the subdomain for one of her domains. If a subdomain ability calls for a saving throw, the DC of the save is equal to 10 + 1/2 the character’s cleric level her Wisdom modifier. Subdomains can be selected by druids (except the metal subdomain) and inquisitors (if their deity allows it).