Hmm. So you're saying there's a hole in the network near Toledo?
Good sign that 2 Ohio Superchargers have opened recently after a long period with them sitting.
But actually I-75 really isn't stacked. This Supercharger still leaves 102.6 miles from West Chester Township, OH to Lima, OH. Dayton, OH is 11 miles/16 minutes diversion, and Beavercreek, OH more.
Piqua, OH would be about a 60-40 split. It's at the intersection of I-75/US-36.
The struggling Piqua Center, Piqua, OH would be a 60.4 mile + 44.3 mile split and I'm sure they'd love any custom they could get. But that doesn't look good for amenities as people would have to cross an apparently crosswalkless road to get food.
There's also the Miami Valley Crossing there which has a Home Depot and a Walmart. Tesla could follow their pattern of putting Superchargers not-quite-at-Walmart.
60.2 miles + 44.2 miles
Alternatively there's Wapakoneta, OH that's on I-75/US-33 about 15 miles from old v2 Lima, OH. There's a bunch of gas stations and fast food at one of its exits.
Not as good a split, but would relieve Lima, OH.