Question: Anyone used to get certification of Magento 2.

May you show me how to get certification of Magento 2 ?

Answer: 
You can register for Magento 2 Certified Solution Specialist (Beta) exam.
Registration begins August 4 2017. Test dates for this Beta exam will be August 14-25.

More Info on registration and certification is available at:
<https://u.magento.com/certification>
i would like to recommand you this all-in-one blog post:
<https://firebearstudio.com/blog/how-to-pass-the-magento-2-certification.html>

it's a very good starting point to get a clear and concise overview of the official Magento Certification program with few pointers to good materials on internet (blogs, youtube channels, alternative options for training courses ..) to start your preparation.

also have a look at the official [Magento certification directory](https://u.magento.com/certification/directory) and try to get touch with those who already get certified in order to get feedback, hints, advises and some encouragement.

and last but not least START with the official devdocs.