Halfling

ability score increase: Your Dexterity score increases by 2.

age: A halfling reaches adulthood at the age of 20 and generally lives into the middle of his or her second century.

Size: Small

speed: Your base walking speed is 25 feet.

Languages: You can speak, read, and write Common and Halfling.

sub races:
Hearthborn Halfling
Shadowmarked Halfling

race features:
Size
Halflings average about 3 feet tall and weigh about 40 pounds. Lucky
When you roll a 1 on the d20 for an attack roll, ability check, or saving throw, you can reroll the die and must use the new roll. Brave
You have advantage on saving throws against being frightened. Halfling Nimbleness
You can move through the space of any creature that is of a size larger than yours.