Is there any possible way to create a set of Group Owners?

Hi Experts,

I am trying to create a set of the users who owns a group(not specific). I have figured out with below approaches:

1. Create an attribute (IsOwner boolean) and update this attribute with workflows and populate the set based on this attribute.

2. Use FIM CMDLETS to get all the owners list and populate the SET.

3. Use FIM Synchronization Service database schema , run a query and populate the set.

approach#1 requires modification of the schema and workflows that need to run for all the available groups.

approach#2 consumes the resources as it needs to enumerate through all the groups.

approach #3 touches the FIM database schema.

Is there any other possible way to accomplish this?

My Set should be like this: populate with the users who is the owner of any group.

Thanks and Regards, Siva Kumar Balaguru