The Shikitari were an incredibly complex species with a unique lifecycle/stages, only one of which they were truly sentient, as well as an appearance that was unique to each individual instance.
Demirian
Armor clad and possibly sporting cybernetic augmentations, the Demirians came under siege when the First Order arrived on Demir, hoping to take their sweet, sweet iron.
Kudon
Out of all of the Canon species not to appear in a Star Wars TV show or film, the Kudon may have suffered the most, enslaved at the hands of the CIS, the Empire, and possibly even the First Order.
Squalris
Unlike most rich species, the shrewd Squalris didn’t resort to becoming crime lords, instead simply becoming some of the greatest bargainers and socialites in the galaxy.
Tectozin
The Tectozin have one of my favorite alien designs in all of Star Wars Canon, and there is a lot of potential room for their species to be explored further on down the line!
Sakuubian
Part feline, but mostly humanoid, this pink and purple pigmented species had nearly unparalleled agility that was vastly underutilized.
Dupei
The Dupei were a mysterious race of space monks with a less than stellar moral code and a vendetta against a certain sect of Trandoshans.
Skeebo
A rich, lesser known species found on the tourism world of the same name, the Skeebo could almost pass for humans were it not for their signature cheek spots and pointed ears.
My Flesh May Fail (Part 3/4)
The 4 part story of two estranged Jedi on a training retreat.
Bufopel
Naturally strong and stoic, when the Empire forced the usually peaceful Bufopel’s hand, what followed was not a pretty picture.