In Google Analytics how do I report on number of users per number of goals?
I need to know how many users convert two, three or more different goals in a specific period. The site has 18 goals.
For this you can use Audience > User Explorer and then create segments (just like Daveth3Cat mentioned). With User Explorer you get the report for all sessions not just a single session.
It shouldn't be too much work - you'll see the % of users on the right as you change the desired number of goal completions.