The originsl intention behind Uncharted Empires was to give old Warhammer armies a home (Mantic have made things their own a bit for 3rd efition though), so you’ll find the salamander list has equivalents for Lizardmen units .
Ghekkotah = skinks
Salamander Primes = Saurus warriors
Fire drake = carnosaurs
You should be able to find a unit profile that roughly matches what your models look capable of for most things and failing that unit fillers/arefefact indicators in units (e.g: a Slann model in a unit of salamander primes to indicate that unit has a magical artefact).
For example, you have lizards riding pterodactyls that might have a shooting attack (they have rocks or something iirc).
That fits the profile for scorchwings, even though the shooting attack looks different to the description it’s mechanically the same.