The Nuxan are a lesser known species that exist within Star Wars Canon, sporting a fairly unique appearance but not much lore to back it up at this time.
Viidaav
On the surface, the Viidaav seem like your average one-off species, but there is much more extended lore than you would expect, all of which is absolutely, utterly tragic...
Toong
One of the stranger species in the pantheon of Star Wars sentients, the Toong go from comic relief to insanely tragic species in the blink of an eye...
Cyclorrian
This Insectoid species always operated in “Swarms,” clans that did everything together, including dwelling in their subterranean homes, manufacturing starships, or even joining the Resistance.
Soikan
The Soikan are a rather mysterious near-Human species with a muddled history of civil wars and violent conflicts, often seemingly spurred by creed, faction, and/or race.
Advozse
The Advozsec were incredibly well documented in Star Wars Legends, being a peaceful, resilient, selfish, herbivorous species with commitment issues and a pension for spontaneous crime.
Ikkrukkian
The Ikkrukkians have had a rather eventful existence in Star Wars Canon, affected by the Nihil, the Empire, the First Order, the Resistance, and even just petty warlords.
Ogemite
Finally Canonized in “The High Republic: Into the Dark,” the Ogemites were a classic Legends species that prioritized their independence and profession as galactic merchants.
Artiodac
A tragic species split up and enslaved by the Zygerrian Empire, forced to violate their pacifist of beliefs by fighting in gladiatorial arenas, as well as being the recipients of many other vile atrocities.
Lannik
Drawing elements from a number of fantasy races, the Lanniks were exceptionally aggressive, a trait that did not blend well with their naturally high intelligence.