The Switch console comes with one pair of Joy Cons. These are attached to the Switch in portable mode, and detached when playing on a TV. Some games support multiplayer modes with each player only needing one Joy-Con half to play. This offers a much more affordable way to accommodate more players.
This list includes 2 games from the last 23 years, with 344 likes. They come from a range of different genres and play-styles and are all good games if you want to play together with one Joy-Con.