You can download all Pokemon Nintendo Switch ROMs from here. Nintendo Switch is a hybrid video game console released worldwide in March 3, 2017. This can be used as a portable device or as a home console. This is the also the release of Nintendo, the world’s largest company of handheld gaming consoles.
These ROMs are the exact copies of the original Pokemon games which you can play on any device using emulator. My favorite games in Pokemon Nintendo Switch Series are Pokemon Shield Double Pack and Pokemon Sword. You can also download these from the given list.