Thanks for the mention @danvillani , Steemstem is very okay but you can also add health post to it in order not to favor the scientist and technologist that would partcipate.............It should be in form of a post with the title ......

STEEMStem & HEALTH POST Contest by @danvillani # ENTRY; YOUR TOPIC.

Price pool- 22 steem/ 22sbd which ever one you prefer.
First position- 10 steem/sbd
Second position- 7 steem/sbd
Third position- 5 steem/sbd

Everybody must upvote and resteem...

The link of their post should be commented in the comment section.

This is just a suggestion anyways.