You can check this threads below but keep in mind that some of there rate may not be the one you're looking for, besides, I think $10 per month isn't that nice I guess. Good luck though and will just bookmark this thread for some updates or maybe you can increase your bid. Be specific as well to the rules for the interested participants like, how much posts is needed, what board you need those posts, etc.

https://bitcointalk.org/index.php?topic=5235954.0
https://bitcointalk.org/index.php?topic=5304549.0
https://bitcointalk.org/index.php?topic=5041658.0
https://bitcointalk.org/index.php?topic=5072766.0

Ok, thank you very much for your information. I ll study it!