Minnowhelperteam has 6 Bots, depending on your needs, you can bid for a vote on a comment or a publication, you can use one or the other Bot.

The voting power of the Bots Hive account@minnowhelper-1 to 5 is smaller but they are built to vote comments. On the other hand Hive account@minnowhelper and Hive account@postpromoter (Bot of Hive account@yabapmatt) have greater voting power and are to promote Posts.

In summary:
-You send to Hive account@minnowhelper-1 to 5 (only 0.001 SBD / STEEM) with in the memo the URL of your Post or comment to vote.
-You send to Hive account@minnowhelper (minimum 0.010 SBD / STEEM) with in the memo the URL of your Post to vote.
-You send to Hive account@postpromoter (minimum 4.000 SBD / STEEM) with in the memo the URL of your Post to vote.

Check the status of the Bots on this link
http://www.minnowhelper.com/index.html#bid