In the MM, halflings are "usually neutral" but most of the others have some kind of alignment bias. CG for elves, LG for dwarves, NG for gnomes.
Aside from humans, most races do have a bias, even if its only "usually neutral".
Hermione tends to grow a bit over time. It was she that was the main force behind the rescue of Sirius Black (albeit prompted a bit by Dumbledore's "What we need is more time"). Though, given that she tends to risk herself for friends, she might be LG with LN tendencies, or even LN with LG tendencies.