What is the rarest Pagan faith that still has active followers?

I remember using Omegle back in 2021 and chatted with an individual who worshiped the Hittite deities. I thought he was joking, but then he really showed me an Altar to the Sun Goddess of Arinna. I doubt he was trolling because that's a very obscure subject to troll with. I'm 100% certain that he's the only individual alive today who worships the Hittite deities because I'm not aware of any Hittite Revivalists. Even Sumerian Revivalists exist, but not Hittite Revivalists (except for that individual).