Hey guys look. Another indie game doing best on Switch. On this case it is Has Been Heroes
"To begin, Tuovinen indicated that Has-Been Heroes has been selling the best on Switch. Tuovinen didn’t share any specific numbers, though that was in part due to since he didn’t have any information on-hand. Switch’s small library could have played a role in the strong performance, but the fact that people were interested in the game and were giving it a shot was encouraging."
Source if you wish to read more.