Iowa-Wisconsin is one of the best, oldest and most even rivalries in the Big 10. It is also the two most-similar fanbases. And I don’t understand your geographic argument- Iowa borders Wisconsin.
Ok so I rearranged it in a slightly less straightforward geographic style to make sure I hit all of the "named" rivalries (at least listed in Wikipedia).
Pod 1 (Plays Pod 7 and 2)
IOWA ----> purdue
NEBRASKA ----> maryland
Pod 2 (Plays Pod 1 and 3)
WISCONSIN ----> rutgers
MINNESOTA ----> penn state
Pod 3 (Plays Pod 2 and 4)
MICHIGAN ----> nw
MICHIGAN STATE ----> indiana
Pod 4
PENN STATE ----> minnesota
OHIO STATE ----> illinois
Pod 5
MARYLAND ----> nebraska
RUTGERS ----> wisconsin
Pod 6
PURDUE ----> iowa
NORTHWESTERN ----> michigan
Pod 7 (Plays Pod 6 and 1)
ILLINOIS ----> osu
INDIANA ----> msu
So that has every named rivalry in Wikipedia. In the below, I'll bold the named "rivalries".
For example, Iowa would now permanently play
Nebraska,
Wisconsin,
Minnesota, Purdue, Illinois, and Indiana.
Ohio State would permanently play its "rivalry" (which I have to say seems like Alabama claiming a rivalry against Vanderbilt, but whatever) against
Illinois as well as
Penn State,
Michigan, Michigan State, Maryland and Rutgers. That gives the POS Eastern teams you stupidly added a "rival" as well and gives OSU the ability to always play marquee games in the Alliance against USC, Oregon, Notre Dame, FSU, and Clemson without worrying about having too difficult of a schedule.
Michigan would permanently play
Ohio State,
Michigan State, Penn State,
Minnesota, Wisconsin and its "rival"
Northwestern.
Penn State would permanently play
Minnesota,
Ohio State, Maryland, Rutgers, Michigan and
Michigan State.
Nebraska would permanently play
Iowa,
Wisconsin,
Minnesota, Illinois, Indiana and Maryland.
Michigan State would permanently play
Indiana,
Michigan, Wisconsin, Minnesota,
Penn State and Ohio State.
Wisconsin would permanently play
Iowa,
Nebraska,
Minnesota, Michigan, Michigan State and Rutgers.
Minnesota would permanently play
Wisconsin,
Michigan, Michigan State,
Penn State,
Iowa, and Nebraska
Illinois would permanently play
Ohio State, Indiana,
Northwestern,
Purdue, Iowa and Nebraska
Indiana would permanently play
Michigan State,
Purdue, Northwestern, Illinois, Iowa, and Nebraska.
Northwestern would permanently play
Michigan, Indiana,
Illinois, Purdue, Maryland and Rutgers.
Purdue would permanently play
Michigan State,
Indiana, Illinois, Northwestern, Maryland and Rutgers.
Maryland would permanently play
Penn State, Rutgers, Ohio State, Nebraska, Northwestern and Purdue.
Rutgers would permanently play Penn State, Maryland, Ohio State, Wisconsin, Northwestern and Purdue.
So I preserved all of the named rivalries and still kept it mostly geographic so that "new" rivalries would develop. I did have to screw over Northwestern and Illinois by forcing them to play your new Eastern POS teams but...who cares about them. And they still kept their historic rivals anyways.