Here's all the Pokemon that can be transferred into S/V when Pokemon Home support is added.

>Gen 1
Charmander, Charmeleon, Charizard, Articuno, Zapdos, Moltres, Mew, Mewtwo
>Gen 2
Cyndaquil, Quilava, Typhlosion, Wooper, Quagsire
>Gen 3
Kyogre, Groudon, Rayquaza
>Gen 4
Uxie, Mesprit, Azelf, Dialga, Palkia, Origin Dialga, Origin Palkia, Heatran, Giratina, Origin Giratina, Cresselia, Arceus, Hisuian Growlithe, Hisuian Arcanine, Hisuian Voltorb, Hisuian Electrode, Hisuian Qwilfish, Hisuian Sneasel, Hisuian Samurott, Hisuian Lilligant, White-Striped Basculin, Hisuian Zorua, Hisuain Zoroark, Hisuian Braviary, Hisuian Sliggoo, Hisuain Goodra, Hisuian Avalugg, Hisuian Decidueye, Wyrdeer, Kleavor, Ursaluna, Basculegion, Sneasler, Overqwil, Enamorus
>Gen 5
Oshawott, Dewott, Samurott, Tornadus, Thudurus, Landorus, Meloetta
>Gen 6
Chespin, Quilladin, Chesnaught, Fennekin, Braixen, Delphox, Froakie, Frogadier, Greninja, Carbink, Diancie, Hoopa, Volcanion
>Gen 7
Rowlet, Dartrix, Dexidueye, Magearna
>Gen 8
Grookey, Thwackey, Rillaboom, Scorbunny, Raboot, Cinderace, Sobble, Drizzle, Inteleon, Perrserker, Zacian, Zamazenta, Eternatus, Kubfu, Urshifu, Zarude, Regieleki, Regidrago, Glastrier, Spectrier, Clayrex

I know they're just gonna sell the rest as DLC, but this list is abysmal.