A new version of the Oracle Database In-Memory Advisor has been released. The In-Memory Advisor is designed to help identify analytic processing that may benefit from the use of Oracle Database In-Memory. It supports Oracle Database 22.214.171.124 and later so you don't have to upgrade to Oracle Database 12c to try it out. The new version includes a number of enhancements including an enhanced and simplified script to run the Advisor and get recommendations.
You can get more information about the In-Memory Advisor here.