I break down the Divine into a few tiers:
Abstract Greater Gods - there are three (The Universe, the Positive Energy Plane, the Negative Energy Plane). They are similar to some of the greatest cosmic entities in Marvel Comics (like Eternity, etc...). There are a few pieces of Lore that describe them taking actions, but those are interpretations of things beyond the comprehension of mortals. These three are known as the Ancients.
I have ~50 'Corporeal' Gods, all but one of which are banished from the Prime Material Plane (Raven Queen lives on the Prime). They're the Gods of Greyhawk + Dawn War pantheons now ... which is a reskin when I rebooted the setting. They used to be my own homebrew, but I realized most of my homebrew Gods had clear equivalents, so when I moved I went with a more accessible pantheon. These beings stay in their Realms and collect power primarily through the worship of mortals, which they then use to empower their agents to pursue their agendas. The unique element for me about my gods is that they do not fall neatly into alignments. There is a 'Greek' feel to my Gods in that the desires of mortals do not matter much to most of them. Mortals are a means to an end, but they need mortals to decide to worship them to give them their power. These Gods are classified as Greater, Lesser, or Deceased. When a God is killed, they do not go to an afterlife. Instead, they continue to exist in a parmanently weakened form - and can still be prayed to and offer spells to clerics. However, they are more of an Echo of their former existence. For Example, the four Elemental Elder Evils are Deceased Gods in my world - who were slain, banished to the Elemental Plane, and then corrupted by the Far Realm.
I also have 'Powers', which are not Gods, but wield Divine Might. They include Demi-Gods, Demon Lords, Arch-Fey, Arch-Devils, and Elder Gods. I have about 35 defined. Their power comes primarily from Pacts, such as a Warlock pact. They don't rely upon faith for their power boost - they rely upon agreements. While a Devil may have a literal contract, a Demon Lord may bind a soul to them with a few words. Elder Gods and Demi-Gods rely as much upon faith as they do deals, but all of them rely upon Divine Pacts to one extent or another.