Ophidians has a 1-2 sentence description. Isn't that neat?
Values: Wisdom, Balance/Fairness, Socialism
Disapproves Of: Selfishness, Short-Sightedness, Wanton Destruction
Most Often: Merchants, Druids, Rangers
Native To: Mashka Sipal (Feraweth), central and eastern Elomawan
Options:
Rattler (venomous)
Constrictor (strong)
Racer (fast)
Plane-Touched Tieflings has a 1-2 sentence description. Isn't that neat?
Values:
Disapproves Of:
Most Often: Sorcerers
Native To: Molthuth
Options:
Earth
Fire
Wind
Water
Threshers has a 1-2 sentence description. Isn't that neat?
Values: Order, Conformity, Productivity
Disapproves Of:
Most Often: Farmers, Crafters, Traders
Native To: The Whitemark Islands, The Godhurst Colonies
Options:
none
Aerune-specific:
Ophidian
Rattler
Constrictor
Racer
Satyr
Kobold
Goblin
Grey Goblin
Green Goblin
Centaur
Drakonka
Half-Giant
Stone Giant (Goliath)
Storm Giant
Fire Giant
Ice Giant
Merfolk
Freshwater
Saltwater
Thresher
Standard 5e races common in Aerune:
Dragonborn
(elemental variance)
Dwarf
Hill Dwarf
Mountain Dwarf
Deep Dwarf (Duergar)
Elf
High Elf
Wood Elf
Dark Elf
Fey Elf (Eladrin)
Star Elf (homebrew)
Gnome
Forest Gnome
Rock Gnome
Deep Gnome
(Half-Elf)
(non-elf-parent variance)
Halfling
Lightfoot Halfling
Stout Halfling
Half-Orc
Human
Tiefling
(bloodline variances)
Shifter
Beasthide
Longtooth
Swiftstride
Wildhunt
Lizardfolk
Aarakocra
(
Most any official 5e player race can appear in Aerune. Talk to your DM about it!)
A Note On "Humanoid"
Most "humanoid" races are a combination of build (waifish, human-average, broad) and height (short (3-5'), human-average (5-6.5'), tall (6.5-8')). For example, dwarves are broad and short, while half-giants are broad and tall. Elves are waifish and average height, and halflings are short and average build.
For many half-breeds, they have a greater range of size+build than one might assume. A half-orc is likely to be taller and broader than a human in general, thanks to their orcish heritage, but if their other parent is a dwarf, they may wind up 5' tall and built like a brick wall. If a half-orc's other parent is an elf, however, they may wind up with an almost human-like build but nearly 7' tall.
For uncertain-origin races like shifters and tieflings, they can have any build+size that would make sense for their heritage. Gnome-sized tiefling? Absolutely. A shifter the size of a half-giant? Dwarf-shaped aasimar? Uncomfortably tall and slender water genasi? Hell yes. Any "race" that can be born to seemingly-unrelated parents can have a similar bodytype as their parents (but can also be completely different, if you choose)!
Tl;dr: Don't be afraid to explore the full range of options for your chosen race.