Hi there please check https://steemit.com/steemit/@santana33/smartsteem-and-why-this-is-the-best-tool-i-have-seen-so-far-to-grow-organically and also;
https://steemit.com/steemit/@santana33/steem-robots-stop-losing-money-and-how-to-be-a-pro
They are not the newest on the matter but are still accurate.