I just feel that maybe having an obtainable list for pokemon avaliable in sword and shield would be a helpful. Since looking at the pokedexes there's a large number of repeats and overlap ,and a few pokemon not listed in the pokedexes at all and having a concise list would be a helpful addition
We have the Unobtainable Pokemon page, which lists the Pokemon that cannot be transferred to SWSH. That page also has a search box at the top. So if you're looking for a specific Pokemon, search it on there - if it appears then the Pokemon isn't available; if no Pokemon is found then it is obtainable in SWSH.
I can see an argument for having one list of what you can get, but that could also be confusing because you can't catch everything without the DLC (only transfer).