Tween/Teen Book Series about Viking girl?

[livmcneilreads]

I have been looking for this book for years and I cannot find it anywhere!
It doesn’t help that I don’t remember the name or author! PLEASE HELP!!!!
For reference graduated high school in 2016 and I read this book my 8th grade year in middle school.
The covers always have an animated girl with a side braid and blonde hair. The books involved a little bit of magic if I remember correctly, and I specifically remember one of the book covers she had a glowing green neckalace on. Another book cover she was surrounded by what looked like a forest of plain, pointed sticks.
It was about a young girls travels (I’m pretty sure she was a Viking of sorts) aboard a ship and on land as she landed at different places.
I want to re read these because I liked them as a young teen but I didn’t get much out of them. I’d like to refresh my memory and be re kindled with a book series I once loved.
If anyone has any info PLEASE LET ME KNOW!
Thank you!!! :)