I had a few folks PM and ask about Zazen.
Zazen is rooted in Zen Buddhism however you don't have to be Buddhist at all. At my center we have Christians, Athiests, Jews and all sorts of cultural, religious and secular backgrounds. We all sit in Zazen and experience the meditation together.
Here is a simple tutorial I found if you wish to try it at home...
How to Meditate - Beginners Introduction to Zazen - YouTube
Keep in mind, if you do find it beneficial I highly suggest you find a center near you so you can sit with others under the guidance of a teacher to help grow your practice. If you want to find a center near you, I can help you find one.