I've found that people really like to upvote things of culture. Art, photos, stories are all very popular... Also look at your tags and make sure your post has been tagged the right way. I've done pretty well working with steemit support communities like MinnowSupport and Whaleshares. Here's a post I did about them:

https://steemit.com/beyondbitcoin/@ldauch/need-more-steemit-attention-minnowsupport-and-whaleshares-are-here-for-you

Best of luck! Don't give up.