I 76 or I 80 from Fair Haven NJ to Allegan, MI

Since I-76 is the Turnpike, that will cost you a decent penny to make the trip, and run South, than North.... And With Fair Haven being on the Northern part of NJ( in my eyes ) , I would jump on RT 280W to 80W into Ohio..

it's free, BUT the truck traffic is usually heavy, because it's free