Small space for washer and dryer

The standard size in washer dryer is 27″ when people ask for a smaller size, the next model down is a 24″ wide machine. I recommend Miele or Bosch in this size. Keep in mind 90% of all 24″ machines are ventless, so if you want to vent it outside. That may narrower your choices down to a brand like Blomberg, who makes one of those.