even when using Google & a GPS the website www.motorcycleroads.us
can help you by providing a chance to read what other riders have said about various desirable/MC cool roads in every state. If it were me, I'd diverge from SE OH down through WV then ride in circles in WV,VA,E TN & NC as long as possible then west to Nashville. That said we have some great roads here in KY too.
"If I had my life to live over,I'd dare to make more mistakes next time...I'd relax,I'd limber up.I'd be sillier than this trip, take fewer things seriously, I would take more chances... take more trips...climb more mountains...swim more rivers...eat more ice cream." Jorge Luis Borges, at age 85