Make your way from 1973's Buckingham Nicks album through to present day. Everything always has that Stevie feel but her voice changed over the decades and the music was usually made in an attempt to stay current so it reflects its time; as an example, some songs demoed over various albums can have a completely different arrangement than what was previously attempted. It's my opinion Stevie is best enjoyed moving chronologically, mixing the solo and group material.
And if you like a particular sound, she has plenty of unreleased material for just about every era