Help Needed - Similar Greek Systems

[ta kala]

I'm doing research for my job related to identifying schools that share similar Greek systems to my current institution.

I am particularly interested in finding schools that:

A) currently have a large number of closed chapters (either fraternities or sororities)

and/or

B) provide housing for current chapters, but are not able to build more houses for new groups.

My institution also has a large percentage of Greeks (30% - 45%) at any given time, but that is not necessarily a shared commonality needed for the research I'm doing.

Please share if you know any schools that would fit either of the descriptions above. Thank you in advance!!