Books like Legend by Marie Lu?

*Divergent by Veronica Roth

*Across the Universe by Beth Revis

*Eve by Anna Carey

*Fracture by Megan Miranda

*Partials by Dan Wells

*Enclave by Ann Aguirre

Shatter Me,Tahereh Mafi

Divergent, Victoria Roth

The Giver, by Lois Lowry

Matched, by Ally Condie

Delirium, Lauren Oliver

Starters, Lissa Price

The Eleventh Plague by Jeff Hirsch

Divergent by Veronica Roth

Enclave by Ann Aguirre

Matched by Ally Condie

Birthmarked by Caragh O'Brien

Inside Out by Maria V Snyder

Wither by Lauren DeStefano

The Knife of Never Letting Go by Patrick Ness

Gone by Michael Grant

Uglies by Scott Westerfield

Shatter Me by Tahereh Mafi

Unwind by Neal Shusterman

The Giver by Lois Lowry

Delirium by Lauren Oliver

The Forest of Hands and Teeth by Carrie Ryan

The Declaration by Gemma Malley

XVI by Julia Carr

The Secret Under My Skin by Janet McNaughton

The Maze Runner by James Dashner

Noughts and Crosses by Malorie Blackman

The Unit by Ninni Holmqvist

Runner by William Dietz

Battle Royale by Koushun Takami

Seed by Rob Ziegler

Life As We Knew It by Susan Beth Pfeffer

Variant by Robison Wells

Under the Never Sky by Veronica Rossi

Feed by M.T. Anderson

The Bar Code Tattoo by Suzanne Weyn

Little Brother by Cory Doctorow

The Chrysalids by John Wyndham

Ship Breaker by Paolo Bacigalupi

Incarceron by Catherine Fisher

The fifth wave- Rick yancey I do not know if this might rely however there's the Percy Jackson sequence, wherein you watch the two essential characters from 12-sixteen, tons of adorable, awkward, moments.

Hunger Games by Suzanne Collins (you've probably already either read/heard of this one)

http://www.goodreads.com/series/73758-the-hunger-g...

Delirium by Lauren Oliver (this is my ULTIMATE favourite book)

http://www.goodreads.com/series/52834-delirium

Divergent by Veronica Ross (incredibly good)

http://www.goodreads.com/series/57530-divergent

The Immortal Rules by Julie Kagwa (I know the vampire theme is really over done and copied, but this is an amazing book in its own right)

http://www.goodreads.com/series/63328-blood-of-ede...

The Mortal Instruments (also good, but I prefer The Infernal Devices which i'll link later. They are currently making this one at the moment and filming it :) )

http://www.goodreads.com/series/44457-the-mortal-i...

The Infernal Devices

http://www.goodreads.com/series/54144-the-infernal...

The Host by Stephenie Meyer (I'm not sure if you liked twilight, but either way, give this book a try. I used to be twilight obsessed, but I found I liked this book more anyway. Most people who hated twilight have also said the same and said they liked this book)

http://www.goodreads.com/book/show/1656001.The_Hos...

These are my personal favourites, but I think if you liked legend, you'll like these too :)

Tomorrow when the war began.