Many consider 'Parable of the Sower' to be her best. It's set in a dystopian future where society has collapsed. The main character, Lauren Olamina, has a unique spiritual and ecological vision called 'Earthseed' as she tries to survive and lead others in this harsh world. It's a thought - provoking and prescient work.
One of her highly regarded novels is 'Kindred'. It combines elements of time travel and the exploration of slavery. The protagonist is repeatedly pulled back in time to a plantation, and through her experiences, it offers a unique and harrowing look at the past and its connection to the present.
Personally, I think 'Dawn' is her best novel. It's the first in the Xenogenesis trilogy. It tells the story of Lilith Iyapo, who is awakened by an alien species after a nuclear war on Earth. The novel delves deep into themes of identity, race, and the relationship between humans and other species.