Some Good YA series, please?

The Hunger Games

The City of Ember

Eragon (Inheritance Cycle)

Harry Potter

Children of the Lamp

Witch and Wizard

Lord of the Rings

Guardians of Ga'Hoole

Wolves of the Beyond

Last Dragon Chronicles

Matched

The Journal of Curious Letters (don't know what the series is called)

A series of Unfortunate Events

Magyk (Again, that's the first book)

Pendragon

I am Number Four

Percy Jackson and the Olympians

The Lost Hero (second series of ^)

Warrior cats

Divergent

The Kane Chronicles

Tiger Saga

That's all I can get from the top of my head...

Bonfire Academy by Imogen Rose

The Immortal Ones by SL Baum

Portal Series by Imogen Rose

The Kindred Series by Erica Stevens

The Gifted Teens by Talia Jager

The Gravity Series by Abigail Boyd

I don't know that many, but I'll give you what I know.

Kissed by an Angel

The Hunger Games

Hush, Hush

Divergent

Fallen

City of Bones

Dead is the New Black

Matched

Clockwork Angel

The Secret Circle

Life as we know it

Maximum Ride

Hope I helped!!