Another pantheon I don’t know much about is the Finnish pantheon; most of what I know outside of Legends & Lore and On Hallowed Ground comes from the MST3K episode “The Day the Earth Froze.” And you can bet I would add in references to that episode in any writeups I do…
Most of what is known about these deities comes from the Kalevala, which was compiled from a variety of folk tales and then edited into a narrative; like much of the mythology of the Irish, Welsh, and Norse (through Snorri Sturluson) it is often unclear what’s actually originally myth and what is a creation of the compiler. Luckily for D&D purposes that doesn’t matter too much. Until I can get a copy of the Kalevala, I’m not too likely to work on this pantheon.
The existing Finnish pantheon:
—Ahto (1e DD)
—Hiisi (1e DD)
—Ilmatar (1e DD)
—Kiputytto (1e DD)
—Loviatar (1e DD, F&A)
—Mielikki (1e DD, F&A)
—Surma (1e DD)
—Tuonetar (1e DD)
—Tuoni (1e DD)
—Ukko (1e DD)
—Untamo (1e DD)
Individuals in Deities & Demigods who should probably be gods:
—Ilmarinen, the smith
—Louhi, the crone of Pohjola