You can do lots of things few as below:

• Participate in contest
• Register yourself at different channel on discord
• promote your post through steemit.chat
• promote at different steemit facebook group
• promote at twitter
  and many more method you can find yourself.
  and one more link you may try
  https://steemit.com/blog/@xyzashu/101-ways-to-get-easy-upvotes
  I think it may help you.