My suggestion:
A daily curation post with links to subscriber posts. Everyone that up-votes the "daily curation post" goes into a weekly draw to win a free month of Kiwibot. Should mean you get added to peoples auto vote's and more organic growth in SP, plus the daily liquid payout. The weekly prize doesn't cost any liquid steem to provide.

Cost to you:

• 1 free month of @kiwibot each week,
• Time putting together curation post, (can these things be automated??)
• Time actually sorting all entries and putting up "winner's post".

Benefit's:

• Auto-votes.
• Organic growth from SP and liquid STEEM daily payouts.
• More user loyalty
• and a daily post advertising your services.

Cheers,

John.