Matched, Crossed, Reached
The Twilight series, Ready or Not, and the Private series.
i personally like the Warriors series, its about 4 clans of cats that live in the forest together and try to survive, (theres more to the book series then that but...) it has fighting, some romance, action and drama, it a AWSOME SERIES!!! and there is four 6 book series to it showing the point of view of a sertain cat in thunderclan
angel beats! it has some language but no really bad cuss words and it has action adventure and romance its 12 episodes long. soul eater naruto those some good ones
-I recommend "Xoe" by Sara C. Roethle.
It depends on what u mean by violence but there is action in the entire series and recommend you watch it just saying but there is some romance to it
there is actually many and you can find some at vizanime.com. I might recommend InuYasha. :)
The Christy Miller series. It goes by volumes. 3 books per {book} volume.
Very little romance, but there is quite some tension.
fighting and a little action to go with it or adventure if you like the outdoors
In my opinion the Dead Is series (including Dead is the new black, Dead is so last year, and Dead is a state of mind) has an acute romance but is a great book. And I know it seems dumb but the Twilight series has a great deal of romance in it. Also, like the dead is series Maximum Ride has a small amount of romance but it really plays a key role in the series. Those, I belive are are some of many Romance teen novels.
read kimi_no_iru_machi also known as a town where you live its rlly good still its an ongoing series currently 14 volumes
The Star - crossed series is quite good.Reckless magic, Hopeless magic, Fearless magic and Endless magic, these are all part of the series in order.