The Eldryn: A Union of Elf and Dryad (5E)

From publisher blurb: Answer the Call of the Forest Inside, you’ll find a new race for use in your fifth edition games. This cross between elves and dryads draws on the powers of nature and internal mystical energy in the form of one of five different tree bonds to defeat their opponents and overcome challenges. You’ll also find over two dozen class specializations and backgrounds to further customize your game experience, all specifically crafted to keep play balance while bringing something fresh and new to the table. This is a great book if you're looking for more character options.