Earlier in the year we quietly released a "Game genres" page, listing all Switch games according to the genres they're listed under in the eShop.
We've just finishing updating the genres for all currently released Switch titles, and will continue to do this as new titles appear in the eShop.
A few games have been edited slightly, as a minority of titles appeared in genres that didn't seem to be consistent with the game content.
Check out the full list here: Nintendo Switch game genres.