There is no special hashtag for selection. Selection is based on the quality of post. As you have only recently created your steemit account so it will be difficult to know the quality of your future articles. You can make a comment on any of my posts after 15 days if you like. I can take a look at the quality of your articles then for consideration to be in the list. Thanks for your interest!
RE: Content promotion #16 by Dust Upvote Initiative