Are Trolls and Ogres Fey too? They are pretty integral to most world myths, or their equivalent stand-ins anyway.
If goblins are Fey, I’d personally house rule Trolls and Ogres as well.
Also,
@Reynard.
For concepts inspired by British Isles and France folkbeliefs, I would normally associate Fey. So, like Gnomes (!) and Goblins are Fey, Ogre would be too. Some Dragons too. (Maybe the snake-bat-wolf Dragons be Fey, while the snake-eagle-lion Dragons be non Fey.) The Faerie is a distinctive otherworld, "somewhere else", which is how D&D 2024 seems to characterize the Feywild.
But for concepts inspired by Scandinavia as well as inspired by other animistic areas of the world, they would normally associate the Ethereal Plane. The Troll are "invisible" (huldr) but are very much part of this world, the Material Plane. D&D represents the concept well enough with the "Border Ethereal", where creatures of ether can observe, move thru, and magically interact with the creatures of matter. It is moreorless identical with how the D&D Ghost is a creature of ether. Sotospeak, the Troll is the "ghost" of a particular mountain − or any other feature of nature, there are many different kinds of troll. The Scandinavian Giant is likewise ethereal. (D&D Giant ≈ risi, rise. D&D Troll ≈ þurs, tuss. Both are kinds of jǫtunn, jutul.) The souls of the features of nature are ethereal.
Maybe it is possible to talk about the "Fey Ether" and the "Shadow Ether", where creatures of natural life comprise the Fey Ether, while creature of Undeath such as Ghost comprise Shadow Ether. Both are present within the Border Ether and can interact with each other normally, as the observe and "haunt" the Material Plane.
Note, when medieval Britain read the Pan-Euro literature, including the folkbeliefs of classical Greece, the British versions of these Greek beings, including "local deities" such as Satyr and Dryad and even cosmic deities − were interpreted to explicitly be Fey creatures. In Shakespeare, the fairy queen Titania (titan) is an other name of the Greek deity, Diana. In Chaucer, Pluto/Hades is a fairy king. And so on. (There are numerous fairy courts, each with its own government.)
At the same time, D&D can also have inspirations from the Greek originals, including Satyr and Dryad, that are Celestials.