The Star Wars Galaxy is a vast and expansive place, not only acting as the setting for a plethora of stories and characters beloved by fans, but also a ton of unique planets, creatures, and species. The latter was one of the first things that drew fans into the Galaxy far, far away, with the famous Cantina scene showing fans some weird and wonderful aliens prominent throughout the Galaxy.
As time has gone on and more and more content has come out, the number of alien species has increased exponentially. There are so many that are totally beloved by fans, whether that be due to their awesome design, their history, or based on a single character representing the whole race.