I'm cleaning up some oldies but goodies and this is a goody!
Cleaning up duplicate groups is a manual process but easily manageable if you handle it on a regularly scheduled basis. I like to do it first thing Friday mornings with a recurring 30 minute event on my calendar. Because I do it weekly it goes quickly and you don't end up with a duplicate that is gaining ground. You just run the Places Activity report in the CMR, export it to CSV, and filter by create date. Take a look at the groups created in the last week and evaluate them. Here's the flow I follow:
The added benefit is you can also catch any potentially inappropriate groups, whether they violate code of conduct or aren't allowed by governance in your org (like social interest groups).
we keep a list of all new Spaces-- check it at every staff meeting.