Firbolg

Ability Score Increase: A +2 to WIS and +1 to STR
Age: Firbolg reach adulthood at a similar age as humans (30) and the oldest among them can live up to 500.
Alignment: Neutral Good is a lot easier to fit into a character than stricter alignments.
Size: Firbolgs are on the upper limit of medium size, being 7-8ft tall, 300lbs.
Speed: 30ft
Firbolg Magic: Detect Magic and Disguise Self, especially the buffed version of Disguise Self are great utility spells to have in your pocket. Hidden Step: A free Invisibility spell once per day is extremely strong at low levels and still useful at higher levels.
Powerful Build: The extra carrying capacity is always nice, no downsides except being too large for fantasy rollercoasters.
Speech of Beast and Leaf: Being able to communicate with Beasts and Plants is a nice ability, but it is extremely limited in the fact that you cannot understand them back.
Language: Common( Eldorian ), Sylvan, and Giant