What about fertility? I would imagine that all drow would be concerned about that.
What about demons and devils. LE drow that worship devils outright would give the campaign an interesting twist. It could open the door to some very interesting home rules concering " Devils as Gods " and the granting of spells. Devils would be happy to fill the traditional niches too...Taking on the roles of fertility, war, and even nature for example. You could even throw in a twist that has the drow worshiping what they think are true gods, but in fact are devils.
As for gods in general:
Each area of society will need a patron god or goddess. The primary focus of the society would have the most important gods of course.
For example, a mercantile drow society will have merchant gods, artisan gods, and prosperity gods as the major deities.
If you want some examples, this is how I get a pantheon started. I keep it simple and expand it when a PC picks one...Why do a whole bunch of work until it's necessary?
Here's some demihuman god briefs I created for The Near East. I give enough to make it playable, then detail it out as the campaign evolves.
Greater Dervak Gods
Kar 'Vakka, the creator, the forger of the race, the great being that chooses the dwarven gods and protects the great hall in the after kingdom. The being is male and female, old and newborn. Never worshiped directly, although included in all prayers so as to recognize that it is Karvak that ultimately determines fate, even the fate of the gods. N domains: Earth, knowledge, strength, protection
Azund, dwarven god of war and tactics: Azmund is said to be the patron of warriors, weaponsmiths, armorers, and engineers. Worshiped by all dwarves as the founder of dwarven civilization. The first dwarf created by Karvak. LG domains: War, law, good, destruction
Breha, dwarven god of law and order: patron of law, knowledge, primary god of those that rule. Worshiped as the lawgiver and first king of the dwarves. Son of Azmund. LN domains: Law, knowledge, strength
Ben 'Dakar, dwarven god of revenge, the furious vindicator of the dwarven race. Worshiped by vindicators, and battleragers. 3rd son of Breat, blessed by Azmund with “ the rage “ during his holy war against the Duergar. CG domains: Destruction, war
Melada, mother of the dwarves, keeper of the hearth, the healer, the guardian of the family. The wife of Azmund, the second dwarf created by Karvak. Worshiped by those that heal, and always prayed to within the home at morning and evening by males and females. Melada is believed to guard the home from disease, and demons that would slay sleeping children. LG domains: Law, earth, healing, luck
Guermal, dwarven god of the dead. No priesthood is devoted to this god, but he is prayed to at funerals, so as to gain a favorable place in the line to the after kingdom. ( when dwarves die, it is believed that they must pass through a great tunnel and review their mistakes in life before entering the after kingdom, those near the front of the line have less mistakes to review, so get into the after kingdom sooner. Those that were evil and twisted in life will become ushers in the tunnel, in service to Guermal. ) N
Greater Duergar Gods
Haddrakal, dwarven god of the Duergar, spawn of evil, king of the false after kingdom( Haddrak ). Worshiped by the Duergar as the progenitor and first king of their race. The surface dwarves believe that Haddrakal was created by Karvak to allow dwarves to choose between evil and good, and ultimately decide whether the race is worthy enough to continue on. Haddrakal is said to maintain his own after kingdom somewhere in the 9 hells, surface dwarves that are truly evil ( those that served in the tunnel, but refuse to repent ) and twisted are sent to Haddrakal by Guermal after they have served a period of time as ushers in the tunnel. Brother of Azmund. LE domains: Law, evil, destruction, war
Garbok-Kor, Duergar god of war, culture, and death. The reaper of the slain. Garbok is the guardian of Haddrak ( the Duergar after kingdom ). All must pass before Gabok before entering the after kingdom, those that are unworthy are sent to Guermal. Gabok is the keeper of all Duergar knowledge. LN domains: Knowledge, war, death, earth
Grella-Kor, queen mother of the Duergar, wife of Haddrakal, sister of Melada, mother of the Duergar race. Grella protects the hearth, and blesses the people with fertility. Those that are unfit to survive are denied the blessings of Grella and left to die. LE domains: Healing, evil, luck, protection